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Top 40 Workday Interview Questions

by Interview Kickstart Team in Interview Questions
February 3, 2023

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Top 40 Workday Interview Questions

Workday is a leading provider of enterprise cloud applications for finance and human resources. Founded in 2005, the company has a strong track record of innovation and customer satisfaction. Workday offers a highly scalable, secure, and flexible platform that helps organizations of all sizes streamline and optimize their business processes. The company serves a diverse range of customers across various industries, including healthcare, education, government, and financial services. Workday is headquartered in California, and has offices around the world.

Workday interview questions can vary depending on the role and level of the position you are applying for. 

If you are preparing for a tech interview, check out our technical interview checklist, interview questions page, and salary negotiation e-book to get interview-ready!

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Want to nail your next tech interview? Sign up for our FREE Webinar.

In this article, we’ll look at the top Workday interview questions and answers.

  • Workday Interview Questions on Coding and Data Structures & Algorithms
  • Workday Interview Questions on System Design
  • Workday Behavioral Interview Questions
  • Basic Interview Questions About Workday 
  • FAQs About Workday Interviews

Workday Interview Questions on Coding and Data Structures & Algorithms

1. Given a bidirectional graph, find the shortest path between two nodes.

To find the shortest path between two nodes in a bidirectional graph, you can use Dijkstra's algorithm or A* search. Both of these algorithms are designed to find the shortest path between two nodes by exploring the graph and keeping track of the shortest distance from the start node to each node visited.

Dijkstra's algorithm is a graph search algorithm that works by repeatedly selecting the node with the smallest known distance from the start node and updating the distances of its neighbors based on the distance from the start node to the current node. It can be implemented using a priority queue to efficiently select the node with the smallest distance.

A* search is a graph search algorithm that uses a heuristic function to guide the search and helps to find the shortest path more efficiently. It works by keeping track of both the actual distance from the start node and the estimated distance to the goal node, using the heuristic function to estimate the distance to the goal. It selects the node to explore next by choosing the node with the lowest sum of the actual distance from the start and the estimated distance to the goal.

Both Dijkstra's algorithm and A* search have a time complexity of O(E log V), where E is the number of edges and V is the number of nodes in the graph. They are both widely used for finding the shortest path in a graph and have been extensively studied and optimized.

2. Write a function to find repeating digits between a range of integers.

Here is a Python function that takes a range of integers and returns a list of the integers that have repeating digits:


def find_repeating_digits(start, end):
    repeating_digits = []
    for i in range(start, end+1):
        # Convert the integer to a string and check for repeating digits
        str_i = str(i)
        for c in str_i:
            if str_i.count(c) > 1:
                repeating_digits.append(i)
                break
    return repeating_digits

This function first initializes an empty list to store the integers with repeating digits. It then iterates over the range of integers from start to end, converts each integer to a string, and checks for repeating digits by counting the number of occurrences of each character in the string. If a character appears more than once, it adds the integer to the list and breaks out of the inner loop. Finally, it returns the list of integers with repeating digits.

Here is an example of how you could use this function:


repeating_digits = find_repeating_digits(100, 200)
print(repeating_digits)

This would output a list of integers between 100 and 200 that have repeating digits, such as [101, 121, 141, 161]

3. Reverse a string without using reverse/split functions.

Here is a simple way to reverse a string in Python without using the built-in reverse() or split() functions:


def reverse_string(s):
    # Initialize an empty string to store the reversed string
    reversed_string = ""
    # Iterate over the string in reverse order
    for i in range(len(s)-1, -1, -1):
        reversed_string += s[i]
    return reversed_string

This function takes a string s as input and initializes an empty string to store the reversed string. It then iterates over the string in reverse order, starting from the last character and going to the first character, and adds each character to the reversed string. Finally, it returns the reversed string.

Here is an example of how you can use this function:


original_string = "Hello, World!"
reversed_string = reverse_string(original_string)
print(reversed_string)  # Output: "!dlroW ,olleH"

Note that this function has a time complexity of O(n), where n is the length of the string, as it needs to iterate over the entire string to reverse it.

4. Write a code to find the median of a sorted array.

Here is a Python function that takes a sorted array and returns the median of the array:


def find_median(arr):
    # Get the length of the array
    n = len(arr)
    # Check if the array has an odd or even number of elements
    if n % 2 == 1:
        # If the array has an odd number of elements, the median is the middle element
        median = arr[n//2]
    else:
        # If the array has an even number of elements, the median is the average of the two middle elements
        median = (arr[n//2 - 1] + arr[n//2]) / 2
    return median

This function first gets the length of the array and checks whether it has an odd or even number of elements. If it has an odd number of elements, the median is the middle element, which is at index n//2. If it has an even number of elements, the median is the average of the two middle elements, which are at indices n//2 - 1 and n//2. It then returns the median.

Here is an example of how you can use this function:


sorted_array = [1, 2, 3, 4, 5]
median = find_median(sorted_array)
print(median)  # Output: 3

This function has a time complexity of O(1), as it only performs a constant number of operations regardless of the size of the array. It assumes that the input array is already sorted, so if you need to find the median of an unsorted array, you will need to first sort the array using a sorting algorithm such as quicksort or mergesort

5. Given a matrix of N*M order. Find the shortest distance from a source cell to a destination cell, traversing through limited cells only. Also, you can move only up, down, left, and right. If found, output the distance, else -1.

To find the shortest distance from a source cell to a destination cell in a matrix, traversing through limited cells only and moving only up, down, left, and right, you can use a variation of breadth-first search (BFS).

BFS is a graph search algorithm that works by exploring the graph level by level, starting from the source node and expanding outward. It can be used to find the shortest path in a graph by keeping track of the distance from the start node to each node visited.

Here is a Python function that implements BFS to find the shortest distance from a source cell to a destination cell in a matrix:


def shortest_distance(matrix, source, destination, traversable):
    # Initialize a queue to store the cells that need to be visited.
    queue = []
    # Initialize a 2D array to store the distances from the source cell.
    distances = [[float('inf') for _ in range(len(matrix[0]))] for _ in range(len(matrix))]
    # Initialize a 2D array to store the visited cells.
    visited = [[False for _ in range(len(matrix[0]))] for _ in range(len(matrix))]

    # Mark the source cell as visited and enqueue it.
    visited[source[0]][source[1]] = True
    queue.append(source)
    distances[source[0]][source[1]] = 0

    # Define the offsets for the up, down, left, and right directions.
    row_offset = [-1, 1, 0, 0]
    col_offset = [0, 0, -1, 1]

    # While the queue is not empty.
    while queue:
        # Dequeue the front cell from the queue.
        current = queue.pop(0)
        row, col = current[0], current[1]

        # If the current cell is the destination cell, return the distance to it.
        if current == destination:
            return distances[row][col]

        # Consider all the unvisited neighbors of the current cell.
        for i in range(4):
            # Calculate the row and column indices of the neighbor.
            new_row = row + row_offset[i]
            new_col = col + col_offset[i]
            # Check if the neighbor is within the bounds of the matrix, is traversable, and has not been visited.
            if 0 <= new_row < len(matrix) and 0 <= new_col < len(matrix[0]) and matrix[new_row][new_col] in traversable and not visited[new_row][new_col]:
                # Mark the neighbor as visited and enqueue it.
                visited[new_row][new_col] = True
                queue.append((new_row, new_col))
                # Update the distance to the neighbor.
                distances[new_row][new_col] = distances[row][col] + 1

    # If the queue becomes empty and we have not returned a distance, it means that the destination cell is not reachable.
    return -1

6. How do you find the level of a binary tree?

To find the level of a binary tree, you can use a breadth-first search (BFS) algorithm. BFS is a graph search algorithm that works by exploring the graph level by level, starting from the source node and expanding outward.

Here is a Python function that implements BFS to find the level of a binary tree:


def find_level(root, val):
    # Initialize a queue for BFS
    queue = deque()
    # Add the root node to the queue
    queue.append((root, 1))
    # Perform BFS
    while queue:
        # Get the node at the front of the queue
        node, level = queue.popleft()
        # Check if the node is the one we are looking for
        if node.val == val:
            # Return the level if the node is found
            return level
        # Explore the children of the node
        if node.left:
            queue.append((node.left, level+1))
        if node.right:
            queue.append((node.right, level+1))
    # Return -1 if the node is not found
    return -1

This function takes a root node root and a value val as input and initializes a queue for BFS. It adds the root node to the queue and performs BFS by repeatedly taking the node at the front of the queue, checking if it is the node we are looking for, and exploring its children. If the node is found, it returns the level of the node. If the queue is empty and the node is not found, it returns -1.

To use this function, you will need to define a class for the nodes in the binary tree, with at least the following attributes:

class TreeNode:

    def __init__(self, val):

        self.val = val

        self.left = None

        self.right = None

You can then create the binary tree by creating instances of the TreeNode class and setting the left and right attributes of each node appropriately. For example:

root = TreeNode(1)

root.left = TreeNode(2)

root.right = TreeNode(3)

root.left.left = TreeNode(4)

root.left.right = TreeNode(5)

level = find_level(root, 5)

print(level)  # Output: 3

This function has a time complexity of O(n), where n is the number of nodes in the tree, as it needs to visit all the nodes in the tree to find the level of the node.

7. Write an algorithm for an elevator system such that the user request is completed in logN time in an N-story building with M elevators.

Here is an algorithm that you can use to implement an elevator system in an N-story building with M elevators that can complete user requests in logarithmic time:

Create a priority queue to store the user requests. The priority queue should be ordered by the floor number of the user request, with the highest floor number having the highest priority.

Initialize a list of M elevators, each with a current floor number and a direction (up or down).

For each elevator, create a thread to simulate its movement. The thread should continuously loop through the following steps:

a. Check the priority queue for any user requests on the current floor of the elevator. If there are any, add them to the elevator and remove them from the queue.

b. Check the direction of the elevator. If it is moving up, increment the current floor number by 1. If it is moving down, decrement the current floor number by 1.

c. Check the priority queue for any user requests on the new current floor of the elevator. If there are any, add them to the elevator and remove them from the queue.

d. If the elevator is empty, change its direction to the opposite of its current direction. If it was moving up, change it to moving down, and vice versa.

For each user request, add it to the priority queue.

This algorithm uses a priority queue and multi-threading to simulate the movement of the elevators and process user requests in logarithmic time. The priority queue allows user requests to be added and processed in logarithmic time, while the threads simulate the movement of the elevators and enable them to process multiple user requests concurrently.

You can implement the priority queue using a heap data structure, such as a binary heap or a Fibonacci heap, to achieve logarithmic time complexity for inserting and removing elements. You can also use a lock or a semaphore to synchronize access to the priority queue and prevent race conditions between the threads.

Note that this algorithm is just one possible way to implement an elevator system and there are many other approaches and optimizations that you can consider depending on your specific requirements and constraints.

8. Given a string s, return true if it is a palindrome, or false otherwise.

Here is a simple solution in Python:


def is_palindrome(s):
    # First, we'll use the `reversed` function to reverse the string
    # Then, we'll use the `join` function to join the reversed string back into a single string
    # Finally, we'll compare the original string with the reversed string
    return s == ''.join(reversed(s))

Here is an example of how you can use this function:

print(is_palindrome('racecar'))  # True

print(is_palindrome('hello'))    # False

This solution works by reversing the string and then comparing it to the original string. If the reversed string is the same as the original string, then it is a palindrome. Otherwise, it is not a palindrome.

Note that this solution is case-sensitive, so "Racecar" would not be considered a palindrome. If you want to ignore case, you can use the lower or upper method to convert the string to lowercase or uppercase before checking for palindromicity.

9. Given a list of lists, find the smallest interval of numbers that includes a number from each list.

To find the smallest interval of numbers that includes a number from each list, you can first find the minimum and maximum values in all the lists, and then return the interval between these values.

Here is an example of how you can do this in Python:


def smallest_interval(lists):
    # Find the minimum and maximum values in all the lists
    min_value = min(min(l) for l in lists)
    max_value = max(max(l) for l in lists)
    
    # Return the interval between these values
    return (min_value, max_value)

Here is an example of how you can use this function:

lists = [[1, 2, 3], [4, 5, 6], [7, 8, 9]]

print(smallest_interval(lists))  # (1, 9)

lists = [[1, 2, 3], [4, 5, 6], [7, 8, 9], [10, 11, 12]]

print(smallest_interval(lists))  # (1, 12)

This solution works by first finding the minimum and maximum values in all the lists, and then returning the interval between these values. This will give you the smallest interval that includes a number from each list.

Note that this solution assumes that each list contains at least one element. If a list is empty, the min and max functions will raise a ValueError. You can add a check for this case if needed.

10. Given K-sorted integer arrays filled on average with N elements, how do you find a minimal span of numbers that contain at least one number from each array (inclusive of the boundaries).

To find a minimal span of numbers that contain at least one number from each array, you can first find the minimum and maximum values in all the arrays, and then return the interval between these values.

Here is an example of how you can do this in Python:


def minimal_span(arrays):
    # Find the minimum and maximum values in all the arrays
    min_value = min(min(a) for a in arrays)
    max_value = max(max(a) for a in arrays)
    
    # Return the interval between these values
    return (min_value, max_value)

Here is an example of how you can use this function:

arrays = [[1, 2, 3], [4, 5, 6], [7, 8, 9]]

print(minimal_span(arrays))  # (1, 9)

arrays = [[1, 2, 3], [4, 5, 6], [7, 8, 9], [10, 11, 12]]

print(minimal_span(arrays))  # (1, 12)

This solution works by first finding the minimum and maximum values in all the arrays, and then returning the interval between these values. This will give you the minimal span that includes at least one number from each array.

Note that this solution assumes that each array contains at least one element. If an array is empty, the min and max functions will raise a ValueError. You can add a check for this case if needed.

Also note that this solution does not take into account the fact that the arrays are K-sorted. If you want to find the minimal span in a way that takes this into account, you can use a different approach. One possibility is to use a priority queue (e.g., a heap) to keep track of the minimum and maximum values as you iterate through the arrays. This way, you can maintain the K-sorted order while finding the minimal span.

11. Given a String of [a-z, A-Z, 0-9], find the length of the longest substring that satisfies the following rules: a substring cannot contain digits [0-9], a substring should contain at least one capital character [A-Z]. e.g. given the String "aqW9ertyz", the longest valid substring has length 3 ("aqW")

To find the length of the longest substring that satisfies the given conditions, you can iterate through the string and keep track of the current substring as you go. If you encounter a digit, you can start a new substring. If you encounter a capital character, you can update the maximum length if needed.

Here is an example of how you can do this in Python:


def longest_substring(s):
    # Initialize variables to keep track of the current substring and the maximum length
    current_substring = ""
    max_length = 0
    
    # Iterate through the string
    for c in s:
        # If the character is a digit, start a new substring
        if c.isdigit():
            current_substring = ""
        # If the character is a capital character, update the current substring and the maximum length
        elif c.isupper():
            current_substring += c
            max_length = max(max_length, len(current_substring))
        # Otherwise, just add the character to the current substring
        else:
            current_substring += c
    
    # Return the maximum length
    return max_length

Here is an example of how you can use this function:

print(longest_substring("aqW9ertyz"))  # 3
print(longest_substring("aqW9erTtyz")) # 4
print(longest_substring("Aqwertyz"))    # 6
print(longest_substring(""))            # 0

This solution works by iterating through the string and keeping track of the current substring as it goes. If it encounters a digit, it starts a new substring. If it encounters a capital character, it updates the maximum length if needed. This way, it is able to find the longest substring that satisfies the given conditions.

Note that this solution assumes that the input string contains only the characters specified in the prompt. If the string contains other characters, they will be included in the substring.

12. Determine if the given strings are anagrams of each other.

To determine if two strings are anagrams of each other, you can compare the frequency of each letter in the two strings. If the frequencies of all the letters are the same, then the strings are anagrams.

Here is an example of how you can do this in Python:


def are_anagrams(s1, s2):
    # Create a frequency counter for each string
    s1_counter = {}
    s2_counter = {}
    
    # Iterate through each string and count the frequency of each letter
    for c in s1:
        s1_counter[c] = s1_counter.get(c, 0) + 1
    for c in s2:
        s2_counter[c] = s2_counter.get(c, 0) + 1
    
    # Compare the frequency counters
    return s1_counter == s2_counter

Here is an example of how you can use this function:

print(are_anagrams('abc', 'cba'))  # True
print(are_anagrams('abc', 'def'))  # False
print(are_anagrams('abc', 'abcd')) # False

This solution works by creating a frequency counter for each string and then comparing the counters. If the counters are the same, then the strings are anagrams.

Note that this solution is case-sensitive, so "Abc" and "abc" would not be considered anagrams. If you want to ignore case, you can use the lower or upper method to convert the strings to lowercase or uppercase before creating the frequency counters.

13. How do you find if a linked list has a loop in it?

To determine if a linked list has a loop, you can use the "hare and tortoise" algorithm, also known as Floyd's cycle-finding algorithm. This algorithm works by setting two pointers to the beginning of the list, one moving at twice the speed of the other. If the list has a loop, the fast pointer will eventually catch up to the slow pointer, and the two pointers will meet at some point in the loop.

Here is an example of how you can implement this algorithm in Python:


def has_loop(head):
    # Initialize the pointers
    slow = head
    fast = head
    
    # Loop until the pointers meet or one of them becomes None
    while fast is not None and fast.next is not None:
        # Move the slow pointer one step
        slow = slow.next
        # Move the fast pointer two steps
        fast = fast.next.next
        # If the pointers meet, there is a loop
        if slow == fast:
            return True
    
    # If the pointers never meet, there is no loop
    return False

Here is an example of how you can use this function:


# Define a simple LinkedList class with a next field
class LinkedList:
    def __init__(self, val, next=None):
        self.val = val
        self.next = next

# Create a linked list with a loop
node1 = LinkedList(1)
node2 = LinkedList(2)
node3 = LinkedList(3)
node4 = LinkedList(4)
node1.next = node2
node2.next = node3
node3.next = node4
node4.next = node2

# Check if the linked list has a loop
print(has_loop(node1))  # True

This solution works by setting two pointers to the beginning of the list and moving them at different speeds. If the pointers meet, there is a loop. Otherwise, there is no loop. Note that this algorithm has a time complexity of O(n), where n is the number of nodes in the linked list. This means it is efficient even for large linked lists.

14. Find the first non-repeating character in a string.

To find the first non-repeating character in a string, you can use a dictionary to keep track of the frequency of each character. Then, you can iterate through the string and return the first character that has a frequency of 1.

Here is an example of how you can do this in Python:


def first_non_repeating(s):
    # Create a dictionary to keep track of the frequency of each character
    frequency = {}
    
    # Iterate through the string and count the frequency of each character
    for c in s:
        frequency[c] = frequency.get(c, 0) + 1
    
    # Iterate through the string again and return the first character with a frequency of 1
    for c in s:
        if frequency[c] == 1:
            return c
    
    # If no such character is found, return None
    return None

Here is an example of how you can use this function:

print(first_non_repeating("abcdefghijklmnopqrstuvwxyz"))  # 'a'

print(first_non_repeating("abcdefghijklmnopqrstuvwxyza")) # 'b'

print(first_non_repeating("aabbccddeeffgghhiijjkkllmmnnooppqqrrssttuuvvwwxxyyzz")) # None

This solution works by using a dictionary to count the frequency of each character and then iterating through the string to find the first character with a frequency of 1. If no such character is found, it returns None.

Note that this solution is case-sensitive, so "a" and "A" are treated as different characters. If you want to ignore case, you can use the lower or upper method to convert the string to lowercase or uppercase before counting the frequencies.

15. Create a function that removes duplicate characters in a string.

To remove duplicate characters in a string, you can use a set to store the characters that have already been seen. Then, you can iterate through the string and add each character to the set as you go. If a character is already in the set, you can skip it.

Here is an example of how you can do this in Python:


def remove_duplicates(s):
    # Create an empty set to store the characters that have been seen
    seen = set()
    
    # Initialize a new string to store the result
    result = ""
    
    # Iterate through the string and add each character to the result if it is not in the set
    for c in s:
        if c not in seen:
            result += c
            seen.add(c)
    
    # Return the result
    return result

Here is an example of how you can use this function:


print(remove_duplicates("abcdefghijklmnopqrstuvwxyz"))  # "abcdefghijklmnopqrstuvwxyz"
print(remove_duplicates("abcdefghijklmnopqrstuvwxyza")) # "abcdefghijklmnopqrstuvwxyz"
print(remove_duplicates("aabbccddeeffgghhiijjkkllmmnnooppqqrrssttuuvvwwxxyyzz")) # "abcdefghijklmnopqrstuvwxyz"

This solution works by using a set to store the characters that have been seen and then iterating through the string to build a new string that only contains unique characters.

Note that this solution is case-sensitive, so "a" and "A" are treated as different characters. If you want to ignore case, you can use the lower or upper method to convert the string to lowercase or uppercase before adding characters to the set.

Workday Interview Questions on System Design

1. Explain distributed microservices.

Distributed microservices are a software architecture that involves breaking a large, monolithic application into smaller, independent units called "microservices." These microservices are designed to be self-contained and operate independently of one another, allowing for more flexibility and scalability.

In a distributed microservices architecture, each microservice is responsible for a specific function or business capability, and communicates with other microservices through APIs. This allows different microservices to be developed and deployed independently of one another, making it easier to make changes or updates to individual microservices without affecting the overall system.

One of the key benefits of distributed microservices is that they allow for more flexibility and scalability. Because each microservice is self-contained and operates independently of the others, it is easier to scale individual microservices up or down as needed, without affecting the rest of the system. This can be particularly useful in environments where there are unpredictable or variable workloads.

Distributed microservices also make it easier to deploy and manage applications, as each microservice can be deployed and managed independently of the others. This can make it easier to perform updates and make changes to the system without disrupting the overall functionality.

Overall, distributed microservices can be a useful approach for building complex, scalable applications that can be easily maintained and updated over time.

2. How is performance monitoring done?

Performance monitoring is the process of monitoring the performance of a system, application, or service to ensure that it is functioning properly and meeting the desired performance objectives. There are several different approaches and tools that can be used to monitor performance, including:

  • Resource monitoring: This involves monitoring various resources such as CPU, memory, and disk usage to ensure that they are not being over-utilized and that there is sufficient capacity to meet the demands of the system.
  • Application monitoring: This involves monitoring the performance of specific applications or services to ensure that they are functioning properly and meeting the desired service level objectives.
  • Network monitoring: This involves monitoring the performance of the network to ensure that it is functioning properly and delivering the desired level of performance.
  • Synthetic monitoring: This involves using automated tools to simulate real-world usage scenarios and monitor the performance of the system under these conditions.
  • Real-user monitoring: This involves monitoring the performance of the system as it is being used by real users in a production environment.

There are many tools and technologies available for performance monitoring, including server monitoring tools, application performance management (APM) tools, and network monitoring tools. These tools typically allow you to set performance thresholds, receive alerts when performance issues arise, and perform root cause analysis to identify and resolve performance problems.

3. Design a Netflix clone.

To design a Netflix clone, you would need to consider the following high-level steps:

  • Define the scope of the project: Determine what features and functionality you want to include in your Netflix clone. This could include features like streaming video content, user profiles, recommendation algorithms, and more.
  • Choose a technology stack: Select the technologies and tools that you will use to build your Netflix clone. This could include a front-end framework like React or Angular, a back-end framework like Node.js or Ruby on Rails, and a database like MySQL or MongoDB.
  • Design the database: Determine how you will store and organize your data, including user information, movie and TV show metadata, and streaming data.
  • Develop the front-end: Create the user interface for your Netflix clone, including the home page, search and browse pages, and individual movie and TV show pages.
  • Develop the back-end: Implement the logic and functionality for your Netflix clone, including user authentication, recommendation algorithms, and streaming video content.
  • Test and debug: Thoroughly test your Netflix clone to ensure that it is functioning properly and fix any bugs or issues that arise.
  • Launch and maintain: Launch your Netflix clone and continuously monitor and maintain it to ensure that it is performing well and meeting the needs of your users.
  • Overall, building a Netflix clone will require a combination of design and development skills, as well as a strong understanding of user experience and database design. It will also require a robust and scalable infrastructure to support the streaming of video content to potentially millions of users.

5. Design an elevator system. 

To design an elevator system, you would need to consider the following high-level steps:

  • Define the scope of the project: Determine the requirements for your elevator system, including the number of elevators, the number of floors, the maximum capacity of each elevator, and any additional features or functionality that you want to include.
  • Choose a control system: Decide on the type of control system that you will use to manage the movement of the elevators. There are several options to choose from, including manual control, semi-automatic control, and fully automatic control.
  • Design the elevator car: Determine the size and layout of the elevator car, including the number of doors, the number of buttons, and any additional features like handrails or mirrors.
  • Design the shaft and hoistway: Determine the size and layout of the shaft and hoistway, including the size of the opening for the elevator car, the size of the counterweight, and any additional safety features like emergency brakes.
  • Choose a drive system: Select the type of drive system that you will use to move the elevator car up and down the shaft. There are several options to choose from, including traction drives, hydraulic drives, and geared drives.
  • Develop the control system software: Write the software that will be used to control the movement of the elevators based on the control system that you have chosen.
  • Test and debug: Thoroughly test your elevator system to ensure that it is functioning properly and fix any bugs or issues that arise.
  • Install and maintain: Install your elevator system in the desired location and continuously monitor and maintain it to ensure that it is performing well and meeting the needs of the users.

Overall, designing an elevator system requires a combination of engineering and programming skills, as well as a strong understanding of safety and reliability. It will also require a robust and scalable infrastructure to support the movement of the elevators and the transportation of potentially thousands of people.

6. Design a database for recording workouts.

To design a database for recording workouts, you would need to consider the following high-level steps:

  • Define the scope of the project: Determine the specific information that you want to track and store in your database, including the types of workouts, the exercises performed, the sets and reps, and any additional details like weights or time.
  • Determine the data model: Decide on the structure and relationships between the different entities in your database, including workouts, exercises, sets, and reps.
  • Choose a database management system: Select the software that you will use to store and manage your data, such as MySQL, PostgreSQL, or MongoDB.
  • Design the database schema: Create the schema for your database, including the tables and columns that you will use to store your data.
  • Populate the database: Enter the initial data into your database, including any workouts or exercises that you have already completed.
  • Develop the interface: Create the user interface for your database, including forms for entering and editing data, as well as reports and charts for analyzing and visualizing the data.
  • Test and debug: Thoroughly test your database to ensure that it is functioning properly and fix any bugs or issues that arise.
  • Maintain the database: Continuously monitor and maintain your database to ensure that it is performing well and meeting the needs of the users.

7. Design a database for a car dealership

To design a database for a car dealership, you would need to consider the following high-level steps:

  • Define the scope of the project: Determine the specific information that you want to track and store in your database, including the make and model of the cars, the year, the price, and any additional details like color, mileage, or options.
  • Determine the data model: Decide on the structure and relationships between the different entities in your database, including cars, customers, sales, and financing.
  • Choose a database management system: Select the software that you will use to store and manage your data, such as MySQL, PostgreSQL, or MongoDB.
  • Design the database schema: Create the schema for your database, including the tables and columns that you will use to store your data.
  • Populate the database: Enter the initial data into your database, including any cars and customers that you have already added to your inventory.
  • Develop the interface: Create the user interface for your database, including forms for entering and editing data, as well as reports and charts for analyzing and visualizing the data.
  • Test and debug: Thoroughly test your database to ensure that it is functioning properly and fix any bugs or issues that arise.
  • Maintain the database: Continuously monitor and maintain your database to ensure that it is performing well and meeting the needs of the users.

8. Create a UML diagram of a filesystem.

Here is a possible UML diagram for a filesystem:

[FileSystem]

  • rootDirectory: Directory

[Directory]

  • name: String
  • parentDirectory: Directory
  • subDirectories: List[Directory]
  • files: List[File]
  • addSubDirectory(subDirectory: Directory): void
  • deleteSubDirectory(subDirectory: Directory): void
  • addFile(file: File): void
  • deleteFile(file: File): void

[File]

  • name: String
  • parentDirectory: Directory
  • size: Long

This UML diagram defines three classes: FileSystem, Directory, and File. The FileSystem class represents the top-level container for the filesystem, and contains a single rootDirectory attribute of type Directory. The Directory class represents a directory within the filesystem, and contains attributes for the name of the directory, a reference to the parent directory, a list of subdirectories, and a list of files. It also includes several methods for adding and deleting subdirectories and files. The File class represents a file within the filesystem, and contains attributes for the name of the file, a reference to the parent directory, and the size of the file.

9. Describe how you would build an API for a DNS provisioning system.

To build an API for a DNS provisioning system, you would need to consider the following high-level steps:

  • Define the scope of the API: Determine the specific functionality that you want to expose through the API, including the ability to create, update, and delete DNS records, as well as the ability to perform domain name searches and registration.
  • Choose a programming language and framework: Select the programming language and framework that you will use to build your API. There are many options to choose from, including Python, Ruby, Java, and more.
  • Design the API endpoints: Determine the specific endpoints that you will expose through the API, including the HTTP methods (e.g., GET, POST, PUT, DELETE) and the parameters that will be required for each endpoint.
  • Implement the API logic: Write the code that will handle the incoming HTTP requests, validate the parameters, and perform the desired actions on the DNS records.
  • Test the API: Thoroughly test the API to ensure that it is functioning properly and returning the correct responses for different input scenarios.
  • Document the API: Create documentation for the API, including information about the endpoints, parameters, and response codes.
  • Deploy the API: Deploy the API to a hosting platform, such as AWS, Azure, or Heroku, and make it available to users.

Workday Behavioral Interview Questions

Answers to behavioral interview questions will vary depending on your own experience. In this section, we will share some points you can follow while answering such interview questions.

1. Why workday?

Workday is a software company that provides a cloud-based human capital management (HCM) and financial management platform for businesses. Some potential reasons to choose Workday as an employer or as a provider of software solutions may include:

  • Innovation: Workday is known for its focus on innovation and continuous improvement, which may be attractive to employees who value a forward-thinking company culture.
  • Customers: Workday has a large and diverse customer base, including many well-known and successful organizations, which may be appealing to those who want to work on interesting and impactful projects.
  • Growth: Workday has experienced strong growth in recent years and is expanding its product offerings and geographic presence, which may be attractive to those seeking opportunities for career advancement and growth.
  • Culture: Workday has a positive company culture that emphasizes collaboration, diversity, and inclusion, which may be appealing to those who value a supportive and inclusive work environment.
  • Benefits: Workday offers a comprehensive package of benefits to its employees, including health, dental, and vision insurance, retirement savings plans, and paid time off, among others.
  • It is important to keep in mind that these are just a few potential reasons to choose Workday, and the decision to work for or do business with any company should be based on a thorough evaluation of your own goals, priorities, and needs.

2. Which is the hardest project you worked on and why?

Which is the hardest project you worked on and why?" is a common question that may be asked in a job interview. It is a challenging question because it requires you to reflect on difficult experiences and to communicate your skills and capabilities in a way that is relevant to the interviewer. Here are some tips for answering this question effectively:

  • Choose a project that demonstrates your skills and abilities: Think about a project that was challenging or difficult for you and that allowed you to demonstrate your skills, such as problem-solving, teamwork, leadership, or adaptability. This will show the interviewer that you are capable of tackling difficult challenges and that you have valuable skills to offer.
  • Explain why the project was challenging: Be specific about the challenges you faced and how you addressed them. This will show the interviewer that you are able to think critically and that you have the ability to overcome obstacles.
  • Emphasize what you learned: Instead of focusing solely on the difficulties of the project, try to emphasize what you learned or gained from the experience. This will show the interviewer that you are a proactive and forward-thinking individual who is always looking to improve and grow.
  • Keep it positive: While it's important to be honest about the challenges you faced, it's also important to keep your response positive. Avoid complaining or dwelling on negative aspects of the project, and focus on the ways you were able to overcome obstacles and achieve success.

3. Which project are you the proudest of?

  • Choose a project that demonstrates your strengths: Think about the skills and qualities that are most relevant to the role you are applying for, and choose a project that demonstrates those strengths. For example, if you are applying for a project management role, you might choose a project where you successfully managed a team to deliver a complex project on time and on budget.
  • Provide context: Explain the scope and objectives of the project, and describe the challenges and obstacles you faced. This can help the interviewer get a better understanding of the project and the role you played in it.
  • Talk about your contributions: Describe the specific tasks and responsibilities you took on during the project, and highlight the specific contributions you made to the project's success.
  • Share the results: Explain the outcome of the project and how it benefited the company or organization. This can help to demonstrate the value of your work and the impact it had.
  • Be specific and concise: Keep your answer focused and avoid going into too much detail. Aim to provide a clear and concise summary of the project and your role in it.

4. Describe the most interesting project you worked on.

When answering this question, it's important to choose a project that you found genuinely interesting and that showcases your skills and abilities. The tips to answering this question are very similar to the previous question, except for the part where you’ll need to explain what made this project interesting to you.

  • Choose a project that demonstrates your strengths.
  • Provide context.
  • Talk about what made the project interesting to you: Explain what about the project captured your attention and why it was interesting to you. This could be the subject matter, the technical challenges, or the opportunity to work with a particular team or on a cutting-edge technology.
  • Share the results.
  • Be specific and concise.

5. Describe how you increased diversity in your previous company.

Describe how you increased diversity in your previous company" is a common question that may be asked in a job interview, particularly if the company places a high value on diversity, equity, and inclusion. Here are some tips for answering this question effectively:

  • Reflect on your efforts to increase diversity: Think about specific actions you took to promote diversity and inclusion in your previous company. This might include participating in diversity training, advocating for diversity in hiring and promotion decisions, or organizing events or initiatives that promote diversity.
  • Describe the impact of your efforts: Explain how your efforts to increase diversity had a positive impact on the company. This might include increasing the diversity of the workforce, improving the company's reputation, or creating a more inclusive and supportive work environment.
  • Emphasize your commitment to diversity: Make it clear that you are committed to promoting diversity and inclusion, and that you believe it is an important part of creating a successful and thriving company.
  • Avoid making generalizations or assumptions: Avoid making generalizations about diversity or assuming that all members of a particular group think or behave in a certain way. Instead, focus on specific actions you took and the impact they had on the company.

6. Where do you see yourself in 5 years?

"Where do you see yourself in 5 years?" is a common question that may be asked in a job interview or during a performance review. It can be a challenging question to answer because it requires you to think about your long-term goals and plans, and to communicate those goals in a way that is relevant to the interviewer or evaluator. Here are some tips for answering this question effectively:

  • Think about your long-term career goals: Take some time to consider what you want to achieve in your career over the next 5 years. This might include specific roles or responsibilities you are interested in, industries or organizations you want to work in, or skills or areas of expertise you want to develop.
  • Align your goals with the company's needs: Consider how your goals align with the needs and goals of the company. This will show the interviewer or evaluator that you are committed to contributing to the company's success and that your goals are realistic and achievable within the organization.
  • Be specific: Instead of giving vague or general responses, try to be specific about what you hope to accomplish in the next 5 years. For example, "I hope to be a manager in a team-oriented organization where I can contribute to the growth and success of the company," is more specific and specific than "I hope to be successful in my career."
  • Be realistic: While it's important to aim high and set ambitious goals, it's also important to be realistic about what you can achieve in the next 5 years. Avoid making grandiose or unrealistic claims about your future plans.
  • Be flexible: Keep in mind that your plans may change over time, and it's important to be open to new opportunities and challenges that may arise. Don't be too rigid in your plans, and be prepared to adapt and pivot as needed

7. What was a challenge you experienced in a project and how did you resolve it?

Here is an example of how you could structure your answer:

  1. Provide some context about the project, including the goals and your role.
  2. Describe the challenge that you faced in detail.
  3. Explain how you approached resolving the challenge.
  4. Describe the steps you took to resolve the challenge.
  5. Discuss the outcome of your efforts and any lessons you learned.

Here is an example of how you could apply this structure to answer the question:

"One challenge I experienced in a project was when we had to integrate a new piece of software into our existing system. This was a crucial part of the project as it was the main feature we were working on, but the software was not compatible with our system.

I approached this challenge by first identifying the root cause of the compatibility issue. I then worked with the development team to come up with a solution that would allow us to integrate the software without disrupting the existing system.

To resolve the challenge, we had to rewrite certain parts of the software and make some modifications to our system. This required a lot of collaboration and communication with the development team and the software vendor.

Ultimately, our efforts were successful and we were able to successfully integrate the software into our system. This was a major accomplishment for the project and it allowed us to deliver the main feature on time.

Through this experience, I learned the importance of being proactive in addressing issues that arise in a project and the value of teamwork in finding solutions."

Basic Interview Questions About Workday 

1. What is Workday?

Workday is a software company that provides enterprise cloud applications for finance and human resources management. The company's flagship product, also called Workday, is a suite of applications that includes tools for financial management, human capital management, payroll, and analytics.

Workday's applications are designed to be flexible and scalable, and can be customized to meet the needs of different organizations. They are also designed to be easy to use, with a modern user interface and intuitive navigation.

In addition to its core applications, Workday also offers a range of other products and services, including professional services, training and education, and customer support. The company serves a wide range of industries, including financial services, healthcare, government, education, and more.

Workday is a leading provider of cloud-based applications for finance and human resources management, with a focus on flexibility, scalability, and ease of use.

2. What are the advantages of Workday?

There are several advantages to using Workday, including:

  • Cloud-based delivery: Workday's applications are delivered as a service over the internet, which means that they can be accessed from anywhere and do not require complex on-premises infrastructure. This can make it easier and more cost-effective to deploy and manage Workday's applications.
  • Scalability: Workday's applications are designed to be highly scalable, which means that they can handle large volumes of data and transactions without performance degradation. This can be particularly useful for organizations that experience rapid growth or seasonal spikes in activity.
  • Customization: Workday's applications are highly configurable, which means that they can be customized to meet the specific needs of different organizations. This can help to ensure that the applications align with an organization's business processes and requirements.
  • Integration: Workday's applications are designed to be integrated with a wide range of other systems and technologies, including other enterprise applications, data sources, and third-party tools. This can help to ensure that Workday's applications can be seamlessly integrated into an organization's existing IT environment.
  • Security: Workday places a strong emphasis on security and compliance, and has a number of measures in place to protect customer data and ensure compliance with various regulations and standards.

The advantages of Workday include its cloud-based delivery, scalability, customization, integration capabilities, and security.

3. What companies use Workday?

Workday is a cloud-based human capital management and financial management software company that provides a suite of applications for managing human resources, payroll, benefits, time and attendance, and financial accounting. Many large and mid-sized companies use Workday to manage their HR and financial processes. 

Some examples of companies that use Workday include Adobe, Airbnb, Alaska Airlines, eBay, Dropbox, Expedia, HP, Salesforce, and Siemens. Workday is also used by educational institutions, non-profit organizations, and government agencies.

4. What database does Workday run on?

Workday uses a proprietary database system that is optimized for the specific needs of the Workday applications. The Workday database is a distributed, in-memory database that is designed to support the scalability, reliability, and performance requirements of Workday's cloud-based HR and financial management applications. Workday's database uses a column-oriented data model, which allows for faster query processing and data retrieval, and is optimized for handling large amounts of data. Workday's database also uses a multi-tenant architecture, which allows the database to support multiple customers on a single instance of the database, while maintaining the security and privacy of each customer's data.

5. How to access a Workday Standard Delivered Report?

To access a Workday standard delivered report, you will need to have a Workday account and be logged in to the Workday application.

Here is a general outline of the steps you can follow to access a standard delivered report:

  1. Navigate to the "Reports" module in the Workday application. This is usually located in the main navigation menu.
  2. In the "Reports" module, you will see a list of report categories. Select the category that contains the standard delivered report you want to access.
  3. Within the report category, you will see a list of reports. Locate the standard delivered report you want to access and click on it.
  4. Some standard delivered reports may have input parameters that you will need to specify in order to run the report. Follow the prompts to enter the necessary input parameters.
  5. Once you have entered the input parameters (if applicable), click the "Run" button to generate the report. The report will be displayed in a new window or tab, depending on your browser settings.
  6. You can save the report as a PDF or Excel file by clicking the "Export" button and selecting the desired file format.

Note: The specific steps and user interface may vary depending on your Workday instance and the version of the Workday application you are using. If you are unsure how to access a standard delivered report, you may want to ask your Workday administrator or refer to the Workday documentation for more detailed instructions.

6. What are Workday Integrations?

Workday integrations refer to the process of connecting Workday, a cloud-based human capital management and financial management software, with other software applications or systems. This can allow organizations to exchange data and automate business processes between Workday and other systems, improving efficiency and reducing the need for manual data entry.

There are several types of Workday integrations that organizations can use, including:

  • Real-time integrations: These integrations allow Workday to exchange data with other systems in real-time, as soon as a change is made. This can be useful for automating business processes that require immediate action or notification.
  • Batch integrations: These integrations allow Workday to exchange data with other systems on a scheduled basis, such as daily or weekly. This can be useful for transferring large amounts of data or for integrating systems that do not require real-time data exchange.
  • API integrations: Workday provides a set of APIs (Application Programming Interfaces) that allow developers to build custom integrations between Workday and other systems. This can be useful for organizations that have specific integration requirements that are not covered by Workday's standard integration options.
  • Cloud connector integrations: Workday offers a set of pre-built integrations called "Cloud Connectors" that allow organizations to quickly and easily connect Workday with popular cloud-based applications such as Salesforce, Google G Suite, and Microsoft Office 365.

Workday integrations can be configured and managed through the Workday Integration Cloud, a cloud-based platform that provides tools and services for building, deploying, and managing integrations between Workday and other systems.

7. Describe workday payroll?

Workday Payroll is a software application that is used by organizations to manage their payroll processes and employee compensation. It allows companies to process and manage payroll, benefits, tax compliance, and other HR-related tasks.

Some of the key features of Workday Payroll include:

  • Payroll processing: This includes calculating employee salaries, deductions, and benefits, and generating pay stubs and paychecks.
  • Tax compliance: Workday Payroll helps organizations stay compliant with local, state, and federal tax laws by calculating and withholding the appropriate taxes from employee pay.
  • Benefits administration: Workday Payroll allows organizations to manage employee benefits such as health insurance, retirement plans, and other perks.
  • Time and attendance tracking: Workday Payroll can be integrated with time and attendance systems to track employee hours worked, overtime, and time off.
  • Reporting and analytics: Workday Payroll provides a variety of reports and analytics tools to help organizations track payroll expenses and make informed decisions about employee compensation.

8. What are the ways to create a report in Workday?

There are several ways to create a report in Workday:

  • Use the Report Writer: The Report Writer is a tool within Workday that allows you to create custom reports using a visual interface. You can select the data you want to include in the report, apply filters and calculations, and choose the layout and formatting.
  • Use the Report Library: Workday includes a library of pre-built reports that you can use as a starting point for your own reports. You can customize these reports by applying filters, changing the layout and formatting, and adding additional data fields.
  • Use a third-party reporting tool: There are several third-party tools that can be used to create reports from Workday data. These tools often offer more advanced features and customization options than the Report 
  • Writer and Report Library.
  • Use Workday's API: If you are a developer, you can use Workday's API to extract data from the system and build custom reports. This option requires a good understanding of programming and may be more suitable for advanced users.

9. What is the use of Domain Security Policies?

Domain security policies are rules that are used to manage access to resources within a domain in a computer network. They are typically implemented through a combination of software and hardware controls and can be used to secure various types of resources, including servers, workstations, applications, and data.

Some examples of domain security policies include:

  • Password policies: These policies define rules for creating and managing passwords, such as minimum length, complexity, and expiration.
  • Access control policies: These policies define which users or groups have access to specific resources and what actions they are allowed to perform.
  • Network security policies: These policies define rules for securing the network itself, such as firewalls, intrusion detection systems, and encryption protocols.
  • Data security policies: These policies define rules for protecting sensitive data, such as data encryption, data backup and recovery, and data retention.

Domain security policies help organizations secure their networks and resources and ensure that access to sensitive information is controlled and properly managed

10. How do you manage access to integrations?

There are several ways to manage access to integrations in Workday:

  • Use integration security policies: Workday allows you to define integration security policies that specify which users or groups have access to specific integrations and what actions they are allowed to perform.
  • Use integration user accounts: You can create separate user accounts for integration users, and assign specific permissions and roles to these accounts. This can help you control access to integrations and ensure that integration users only have the permissions they need to perform their duties.
  • Use integration security groups: You can create security groups for integration users and assign permissions and roles to these groups. This can help you manage access to integrations more efficiently, as you can assign permissions to the group rather than to individual users.
  • Use integration access profiles: You can create integration access profiles that define the permissions and roles that integration users have within Workday. These profiles can be assigned to individual users or groups of users, and can help you control access to integrations more granularly.

Managing access to integrations in Workday involves defining the permissions and roles that integration users have within the system, and ensuring that access to integrations is properly controlled and secured.

FAQs About Workday Interviews

1. Are Workday interviews hard?

Like any interview, the difficulty of a Workday interview can vary depending on the specific role and the qualifications of the candidate. In general, it is always a good idea to prepare thoroughly for an interview and to be knowledgeable about the company and the specific position for which you are applying. This can help you feel more confident and better equipped to handle any questions that come your way. 

Some common types of questions that may come up in a Workday interview include technical questions about the company's products or services, questions about your past work experience and achievements, and behavioral questions designed to assess your fit with the company's culture and values.

2. What do I need to know for a Workday interview?

  • Research the company: Familiarize yourself with Workday's mission, values, products, and services. This can help you understand the company's goals and how you might be able to contribute to them.
  • Review the job description: Carefully review the job description for the position you are applying for, and make sure you understand the duties and responsibilities involved. This can help you tailor your responses to the interviewer's questions.
  • Prepare answers to common interview questions
  • Prepare questions to ask the interviewer: It is usually a good idea to have a few questions of your own to ask the interviewer. This can demonstrate your interest in the company and the role, and can also give you a better sense of whether the position is a good fit for you. Some questions you might consider asking include "What does a typical day look like for someone in this role?", "What are the long-term goals for this team?", and "What opportunities are there for growth and development within the company?".
  • Dress appropriately: Make sure to dress professionally for your interview. This can help you make a good impression and show that you take the opportunity seriously.

3. What is Workday interview process?

The Workday interview process may vary depending on the specific role and location, but in general, it typically includes several rounds of interviews with different people within the company. These interviews may be conducted in person, by phone, or via video conference, depending on the circumstances.

The first round of interviews is often a screening interview, which is typically conducted by a recruiter or HR representative. This interview is usually focused on your basic qualifications and experience, and may include questions about your resume, your education, and your career goals.

If you are successful in the first round, you may be invited to participate in additional rounds of interviews with team members or managers from the department in which you would be working. These interviews may be more technical in nature and may focus on your specific skills and experience related to the role.

It is not uncommon for the Workday interview process to include a mix of individual and group interviews, as well as assessments or other activities designed to assess your fit with the company's culture and values. It is a good idea to be prepared for a variety of formats and types of questions, and to be flexible and adaptable as you move through the process.

How to Nail Your Next Workday Interview

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Top 40 Workday Interview Questions

Workday is a leading provider of enterprise cloud applications for finance and human resources. Founded in 2005, the company has a strong track record of innovation and customer satisfaction. Workday offers a highly scalable, secure, and flexible platform that helps organizations of all sizes streamline and optimize their business processes. The company serves a diverse range of customers across various industries, including healthcare, education, government, and financial services. Workday is headquartered in California, and has offices around the world.

Workday interview questions can vary depending on the role and level of the position you are applying for. 

If you are preparing for a tech interview, check out our technical interview checklist, interview questions page, and salary negotiation e-book to get interview-ready!

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In this article, we’ll look at the top Workday interview questions and answers.

  • Workday Interview Questions on Coding and Data Structures & Algorithms
  • Workday Interview Questions on System Design
  • Workday Behavioral Interview Questions
  • Basic Interview Questions About Workday 
  • FAQs About Workday Interviews

Workday Interview Questions on Coding and Data Structures & Algorithms

1. Given a bidirectional graph, find the shortest path between two nodes.

To find the shortest path between two nodes in a bidirectional graph, you can use Dijkstra's algorithm or A* search. Both of these algorithms are designed to find the shortest path between two nodes by exploring the graph and keeping track of the shortest distance from the start node to each node visited.

Dijkstra's algorithm is a graph search algorithm that works by repeatedly selecting the node with the smallest known distance from the start node and updating the distances of its neighbors based on the distance from the start node to the current node. It can be implemented using a priority queue to efficiently select the node with the smallest distance.

A* search is a graph search algorithm that uses a heuristic function to guide the search and helps to find the shortest path more efficiently. It works by keeping track of both the actual distance from the start node and the estimated distance to the goal node, using the heuristic function to estimate the distance to the goal. It selects the node to explore next by choosing the node with the lowest sum of the actual distance from the start and the estimated distance to the goal.

Both Dijkstra's algorithm and A* search have a time complexity of O(E log V), where E is the number of edges and V is the number of nodes in the graph. They are both widely used for finding the shortest path in a graph and have been extensively studied and optimized.

2. Write a function to find repeating digits between a range of integers.

Here is a Python function that takes a range of integers and returns a list of the integers that have repeating digits:


def find_repeating_digits(start, end):
    repeating_digits = []
    for i in range(start, end+1):
        # Convert the integer to a string and check for repeating digits
        str_i = str(i)
        for c in str_i:
            if str_i.count(c) > 1:
                repeating_digits.append(i)
                break
    return repeating_digits

This function first initializes an empty list to store the integers with repeating digits. It then iterates over the range of integers from start to end, converts each integer to a string, and checks for repeating digits by counting the number of occurrences of each character in the string. If a character appears more than once, it adds the integer to the list and breaks out of the inner loop. Finally, it returns the list of integers with repeating digits.

Here is an example of how you could use this function:


repeating_digits = find_repeating_digits(100, 200)
print(repeating_digits)

This would output a list of integers between 100 and 200 that have repeating digits, such as [101, 121, 141, 161]

3. Reverse a string without using reverse/split functions.

Here is a simple way to reverse a string in Python without using the built-in reverse() or split() functions:


def reverse_string(s):
    # Initialize an empty string to store the reversed string
    reversed_string = ""
    # Iterate over the string in reverse order
    for i in range(len(s)-1, -1, -1):
        reversed_string += s[i]
    return reversed_string

This function takes a string s as input and initializes an empty string to store the reversed string. It then iterates over the string in reverse order, starting from the last character and going to the first character, and adds each character to the reversed string. Finally, it returns the reversed string.

Here is an example of how you can use this function:


original_string = "Hello, World!"
reversed_string = reverse_string(original_string)
print(reversed_string)  # Output: "!dlroW ,olleH"

Note that this function has a time complexity of O(n), where n is the length of the string, as it needs to iterate over the entire string to reverse it.

4. Write a code to find the median of a sorted array.

Here is a Python function that takes a sorted array and returns the median of the array:


def find_median(arr):
    # Get the length of the array
    n = len(arr)
    # Check if the array has an odd or even number of elements
    if n % 2 == 1:
        # If the array has an odd number of elements, the median is the middle element
        median = arr[n//2]
    else:
        # If the array has an even number of elements, the median is the average of the two middle elements
        median = (arr[n//2 - 1] + arr[n//2]) / 2
    return median

This function first gets the length of the array and checks whether it has an odd or even number of elements. If it has an odd number of elements, the median is the middle element, which is at index n//2. If it has an even number of elements, the median is the average of the two middle elements, which are at indices n//2 - 1 and n//2. It then returns the median.

Here is an example of how you can use this function:


sorted_array = [1, 2, 3, 4, 5]
median = find_median(sorted_array)
print(median)  # Output: 3

This function has a time complexity of O(1), as it only performs a constant number of operations regardless of the size of the array. It assumes that the input array is already sorted, so if you need to find the median of an unsorted array, you will need to first sort the array using a sorting algorithm such as quicksort or mergesort

5. Given a matrix of N*M order. Find the shortest distance from a source cell to a destination cell, traversing through limited cells only. Also, you can move only up, down, left, and right. If found, output the distance, else -1.

To find the shortest distance from a source cell to a destination cell in a matrix, traversing through limited cells only and moving only up, down, left, and right, you can use a variation of breadth-first search (BFS).

BFS is a graph search algorithm that works by exploring the graph level by level, starting from the source node and expanding outward. It can be used to find the shortest path in a graph by keeping track of the distance from the start node to each node visited.

Here is a Python function that implements BFS to find the shortest distance from a source cell to a destination cell in a matrix:


def shortest_distance(matrix, source, destination, traversable):
    # Initialize a queue to store the cells that need to be visited.
    queue = []
    # Initialize a 2D array to store the distances from the source cell.
    distances = [[float('inf') for _ in range(len(matrix[0]))] for _ in range(len(matrix))]
    # Initialize a 2D array to store the visited cells.
    visited = [[False for _ in range(len(matrix[0]))] for _ in range(len(matrix))]

    # Mark the source cell as visited and enqueue it.
    visited[source[0]][source[1]] = True
    queue.append(source)
    distances[source[0]][source[1]] = 0

    # Define the offsets for the up, down, left, and right directions.
    row_offset = [-1, 1, 0, 0]
    col_offset = [0, 0, -1, 1]

    # While the queue is not empty.
    while queue:
        # Dequeue the front cell from the queue.
        current = queue.pop(0)
        row, col = current[0], current[1]

        # If the current cell is the destination cell, return the distance to it.
        if current == destination:
            return distances[row][col]

        # Consider all the unvisited neighbors of the current cell.
        for i in range(4):
            # Calculate the row and column indices of the neighbor.
            new_row = row + row_offset[i]
            new_col = col + col_offset[i]
            # Check if the neighbor is within the bounds of the matrix, is traversable, and has not been visited.
            if 0 <= new_row < len(matrix) and 0 <= new_col < len(matrix[0]) and matrix[new_row][new_col] in traversable and not visited[new_row][new_col]:
                # Mark the neighbor as visited and enqueue it.
                visited[new_row][new_col] = True
                queue.append((new_row, new_col))
                # Update the distance to the neighbor.
                distances[new_row][new_col] = distances[row][col] + 1

    # If the queue becomes empty and we have not returned a distance, it means that the destination cell is not reachable.
    return -1

6. How do you find the level of a binary tree?

To find the level of a binary tree, you can use a breadth-first search (BFS) algorithm. BFS is a graph search algorithm that works by exploring the graph level by level, starting from the source node and expanding outward.

Here is a Python function that implements BFS to find the level of a binary tree:


def find_level(root, val):
    # Initialize a queue for BFS
    queue = deque()
    # Add the root node to the queue
    queue.append((root, 1))
    # Perform BFS
    while queue:
        # Get the node at the front of the queue
        node, level = queue.popleft()
        # Check if the node is the one we are looking for
        if node.val == val:
            # Return the level if the node is found
            return level
        # Explore the children of the node
        if node.left:
            queue.append((node.left, level+1))
        if node.right:
            queue.append((node.right, level+1))
    # Return -1 if the node is not found
    return -1

This function takes a root node root and a value val as input and initializes a queue for BFS. It adds the root node to the queue and performs BFS by repeatedly taking the node at the front of the queue, checking if it is the node we are looking for, and exploring its children. If the node is found, it returns the level of the node. If the queue is empty and the node is not found, it returns -1.

To use this function, you will need to define a class for the nodes in the binary tree, with at least the following attributes:

class TreeNode:

    def __init__(self, val):

        self.val = val

        self.left = None

        self.right = None

You can then create the binary tree by creating instances of the TreeNode class and setting the left and right attributes of each node appropriately. For example:

root = TreeNode(1)

root.left = TreeNode(2)

root.right = TreeNode(3)

root.left.left = TreeNode(4)

root.left.right = TreeNode(5)

level = find_level(root, 5)

print(level)  # Output: 3

This function has a time complexity of O(n), where n is the number of nodes in the tree, as it needs to visit all the nodes in the tree to find the level of the node.

7. Write an algorithm for an elevator system such that the user request is completed in logN time in an N-story building with M elevators.

Here is an algorithm that you can use to implement an elevator system in an N-story building with M elevators that can complete user requests in logarithmic time:

Create a priority queue to store the user requests. The priority queue should be ordered by the floor number of the user request, with the highest floor number having the highest priority.

Initialize a list of M elevators, each with a current floor number and a direction (up or down).

For each elevator, create a thread to simulate its movement. The thread should continuously loop through the following steps:

a. Check the priority queue for any user requests on the current floor of the elevator. If there are any, add them to the elevator and remove them from the queue.

b. Check the direction of the elevator. If it is moving up, increment the current floor number by 1. If it is moving down, decrement the current floor number by 1.

c. Check the priority queue for any user requests on the new current floor of the elevator. If there are any, add them to the elevator and remove them from the queue.

d. If the elevator is empty, change its direction to the opposite of its current direction. If it was moving up, change it to moving down, and vice versa.

For each user request, add it to the priority queue.

This algorithm uses a priority queue and multi-threading to simulate the movement of the elevators and process user requests in logarithmic time. The priority queue allows user requests to be added and processed in logarithmic time, while the threads simulate the movement of the elevators and enable them to process multiple user requests concurrently.

You can implement the priority queue using a heap data structure, such as a binary heap or a Fibonacci heap, to achieve logarithmic time complexity for inserting and removing elements. You can also use a lock or a semaphore to synchronize access to the priority queue and prevent race conditions between the threads.

Note that this algorithm is just one possible way to implement an elevator system and there are many other approaches and optimizations that you can consider depending on your specific requirements and constraints.

8. Given a string s, return true if it is a palindrome, or false otherwise.

Here is a simple solution in Python:


def is_palindrome(s):
    # First, we'll use the `reversed` function to reverse the string
    # Then, we'll use the `join` function to join the reversed string back into a single string
    # Finally, we'll compare the original string with the reversed string
    return s == ''.join(reversed(s))

Here is an example of how you can use this function:

print(is_palindrome('racecar'))  # True

print(is_palindrome('hello'))    # False

This solution works by reversing the string and then comparing it to the original string. If the reversed string is the same as the original string, then it is a palindrome. Otherwise, it is not a palindrome.

Note that this solution is case-sensitive, so "Racecar" would not be considered a palindrome. If you want to ignore case, you can use the lower or upper method to convert the string to lowercase or uppercase before checking for palindromicity.

9. Given a list of lists, find the smallest interval of numbers that includes a number from each list.

To find the smallest interval of numbers that includes a number from each list, you can first find the minimum and maximum values in all the lists, and then return the interval between these values.

Here is an example of how you can do this in Python:


def smallest_interval(lists):
    # Find the minimum and maximum values in all the lists
    min_value = min(min(l) for l in lists)
    max_value = max(max(l) for l in lists)
    
    # Return the interval between these values
    return (min_value, max_value)

Here is an example of how you can use this function:

lists = [[1, 2, 3], [4, 5, 6], [7, 8, 9]]

print(smallest_interval(lists))  # (1, 9)

lists = [[1, 2, 3], [4, 5, 6], [7, 8, 9], [10, 11, 12]]

print(smallest_interval(lists))  # (1, 12)

This solution works by first finding the minimum and maximum values in all the lists, and then returning the interval between these values. This will give you the smallest interval that includes a number from each list.

Note that this solution assumes that each list contains at least one element. If a list is empty, the min and max functions will raise a ValueError. You can add a check for this case if needed.

10. Given K-sorted integer arrays filled on average with N elements, how do you find a minimal span of numbers that contain at least one number from each array (inclusive of the boundaries).

To find a minimal span of numbers that contain at least one number from each array, you can first find the minimum and maximum values in all the arrays, and then return the interval between these values.

Here is an example of how you can do this in Python:


def minimal_span(arrays):
    # Find the minimum and maximum values in all the arrays
    min_value = min(min(a) for a in arrays)
    max_value = max(max(a) for a in arrays)
    
    # Return the interval between these values
    return (min_value, max_value)

Here is an example of how you can use this function:

arrays = [[1, 2, 3], [4, 5, 6], [7, 8, 9]]

print(minimal_span(arrays))  # (1, 9)

arrays = [[1, 2, 3], [4, 5, 6], [7, 8, 9], [10, 11, 12]]

print(minimal_span(arrays))  # (1, 12)

This solution works by first finding the minimum and maximum values in all the arrays, and then returning the interval between these values. This will give you the minimal span that includes at least one number from each array.

Note that this solution assumes that each array contains at least one element. If an array is empty, the min and max functions will raise a ValueError. You can add a check for this case if needed.

Also note that this solution does not take into account the fact that the arrays are K-sorted. If you want to find the minimal span in a way that takes this into account, you can use a different approach. One possibility is to use a priority queue (e.g., a heap) to keep track of the minimum and maximum values as you iterate through the arrays. This way, you can maintain the K-sorted order while finding the minimal span.

11. Given a String of [a-z, A-Z, 0-9], find the length of the longest substring that satisfies the following rules: a substring cannot contain digits [0-9], a substring should contain at least one capital character [A-Z]. e.g. given the String "aqW9ertyz", the longest valid substring has length 3 ("aqW")

To find the length of the longest substring that satisfies the given conditions, you can iterate through the string and keep track of the current substring as you go. If you encounter a digit, you can start a new substring. If you encounter a capital character, you can update the maximum length if needed.

Here is an example of how you can do this in Python:


def longest_substring(s):
    # Initialize variables to keep track of the current substring and the maximum length
    current_substring = ""
    max_length = 0
    
    # Iterate through the string
    for c in s:
        # If the character is a digit, start a new substring
        if c.isdigit():
            current_substring = ""
        # If the character is a capital character, update the current substring and the maximum length
        elif c.isupper():
            current_substring += c
            max_length = max(max_length, len(current_substring))
        # Otherwise, just add the character to the current substring
        else:
            current_substring += c
    
    # Return the maximum length
    return max_length

Here is an example of how you can use this function:

print(longest_substring("aqW9ertyz"))  # 3
print(longest_substring("aqW9erTtyz")) # 4
print(longest_substring("Aqwertyz"))    # 6
print(longest_substring(""))            # 0

This solution works by iterating through the string and keeping track of the current substring as it goes. If it encounters a digit, it starts a new substring. If it encounters a capital character, it updates the maximum length if needed. This way, it is able to find the longest substring that satisfies the given conditions.

Note that this solution assumes that the input string contains only the characters specified in the prompt. If the string contains other characters, they will be included in the substring.

12. Determine if the given strings are anagrams of each other.

To determine if two strings are anagrams of each other, you can compare the frequency of each letter in the two strings. If the frequencies of all the letters are the same, then the strings are anagrams.

Here is an example of how you can do this in Python:


def are_anagrams(s1, s2):
    # Create a frequency counter for each string
    s1_counter = {}
    s2_counter = {}
    
    # Iterate through each string and count the frequency of each letter
    for c in s1:
        s1_counter[c] = s1_counter.get(c, 0) + 1
    for c in s2:
        s2_counter[c] = s2_counter.get(c, 0) + 1
    
    # Compare the frequency counters
    return s1_counter == s2_counter

Here is an example of how you can use this function:

print(are_anagrams('abc', 'cba'))  # True
print(are_anagrams('abc', 'def'))  # False
print(are_anagrams('abc', 'abcd')) # False

This solution works by creating a frequency counter for each string and then comparing the counters. If the counters are the same, then the strings are anagrams.

Note that this solution is case-sensitive, so "Abc" and "abc" would not be considered anagrams. If you want to ignore case, you can use the lower or upper method to convert the strings to lowercase or uppercase before creating the frequency counters.

13. How do you find if a linked list has a loop in it?

To determine if a linked list has a loop, you can use the "hare and tortoise" algorithm, also known as Floyd's cycle-finding algorithm. This algorithm works by setting two pointers to the beginning of the list, one moving at twice the speed of the other. If the list has a loop, the fast pointer will eventually catch up to the slow pointer, and the two pointers will meet at some point in the loop.

Here is an example of how you can implement this algorithm in Python:


def has_loop(head):
    # Initialize the pointers
    slow = head
    fast = head
    
    # Loop until the pointers meet or one of them becomes None
    while fast is not None and fast.next is not None:
        # Move the slow pointer one step
        slow = slow.next
        # Move the fast pointer two steps
        fast = fast.next.next
        # If the pointers meet, there is a loop
        if slow == fast:
            return True
    
    # If the pointers never meet, there is no loop
    return False

Here is an example of how you can use this function:


# Define a simple LinkedList class with a next field
class LinkedList:
    def __init__(self, val, next=None):
        self.val = val
        self.next = next

# Create a linked list with a loop
node1 = LinkedList(1)
node2 = LinkedList(2)
node3 = LinkedList(3)
node4 = LinkedList(4)
node1.next = node2
node2.next = node3
node3.next = node4
node4.next = node2

# Check if the linked list has a loop
print(has_loop(node1))  # True

This solution works by setting two pointers to the beginning of the list and moving them at different speeds. If the pointers meet, there is a loop. Otherwise, there is no loop. Note that this algorithm has a time complexity of O(n), where n is the number of nodes in the linked list. This means it is efficient even for large linked lists.

14. Find the first non-repeating character in a string.

To find the first non-repeating character in a string, you can use a dictionary to keep track of the frequency of each character. Then, you can iterate through the string and return the first character that has a frequency of 1.

Here is an example of how you can do this in Python:


def first_non_repeating(s):
    # Create a dictionary to keep track of the frequency of each character
    frequency = {}
    
    # Iterate through the string and count the frequency of each character
    for c in s:
        frequency[c] = frequency.get(c, 0) + 1
    
    # Iterate through the string again and return the first character with a frequency of 1
    for c in s:
        if frequency[c] == 1:
            return c
    
    # If no such character is found, return None
    return None

Here is an example of how you can use this function:

print(first_non_repeating("abcdefghijklmnopqrstuvwxyz"))  # 'a'

print(first_non_repeating("abcdefghijklmnopqrstuvwxyza")) # 'b'

print(first_non_repeating("aabbccddeeffgghhiijjkkllmmnnooppqqrrssttuuvvwwxxyyzz")) # None

This solution works by using a dictionary to count the frequency of each character and then iterating through the string to find the first character with a frequency of 1. If no such character is found, it returns None.

Note that this solution is case-sensitive, so "a" and "A" are treated as different characters. If you want to ignore case, you can use the lower or upper method to convert the string to lowercase or uppercase before counting the frequencies.

15. Create a function that removes duplicate characters in a string.

To remove duplicate characters in a string, you can use a set to store the characters that have already been seen. Then, you can iterate through the string and add each character to the set as you go. If a character is already in the set, you can skip it.

Here is an example of how you can do this in Python:


def remove_duplicates(s):
    # Create an empty set to store the characters that have been seen
    seen = set()
    
    # Initialize a new string to store the result
    result = ""
    
    # Iterate through the string and add each character to the result if it is not in the set
    for c in s:
        if c not in seen:
            result += c
            seen.add(c)
    
    # Return the result
    return result

Here is an example of how you can use this function:


print(remove_duplicates("abcdefghijklmnopqrstuvwxyz"))  # "abcdefghijklmnopqrstuvwxyz"
print(remove_duplicates("abcdefghijklmnopqrstuvwxyza")) # "abcdefghijklmnopqrstuvwxyz"
print(remove_duplicates("aabbccddeeffgghhiijjkkllmmnnooppqqrrssttuuvvwwxxyyzz")) # "abcdefghijklmnopqrstuvwxyz"

This solution works by using a set to store the characters that have been seen and then iterating through the string to build a new string that only contains unique characters.

Note that this solution is case-sensitive, so "a" and "A" are treated as different characters. If you want to ignore case, you can use the lower or upper method to convert the string to lowercase or uppercase before adding characters to the set.

Workday Interview Questions on System Design

1. Explain distributed microservices.

Distributed microservices are a software architecture that involves breaking a large, monolithic application into smaller, independent units called "microservices." These microservices are designed to be self-contained and operate independently of one another, allowing for more flexibility and scalability.

In a distributed microservices architecture, each microservice is responsible for a specific function or business capability, and communicates with other microservices through APIs. This allows different microservices to be developed and deployed independently of one another, making it easier to make changes or updates to individual microservices without affecting the overall system.

One of the key benefits of distributed microservices is that they allow for more flexibility and scalability. Because each microservice is self-contained and operates independently of the others, it is easier to scale individual microservices up or down as needed, without affecting the rest of the system. This can be particularly useful in environments where there are unpredictable or variable workloads.

Distributed microservices also make it easier to deploy and manage applications, as each microservice can be deployed and managed independently of the others. This can make it easier to perform updates and make changes to the system without disrupting the overall functionality.

Overall, distributed microservices can be a useful approach for building complex, scalable applications that can be easily maintained and updated over time.

2. How is performance monitoring done?

Performance monitoring is the process of monitoring the performance of a system, application, or service to ensure that it is functioning properly and meeting the desired performance objectives. There are several different approaches and tools that can be used to monitor performance, including:

  • Resource monitoring: This involves monitoring various resources such as CPU, memory, and disk usage to ensure that they are not being over-utilized and that there is sufficient capacity to meet the demands of the system.
  • Application monitoring: This involves monitoring the performance of specific applications or services to ensure that they are functioning properly and meeting the desired service level objectives.
  • Network monitoring: This involves monitoring the performance of the network to ensure that it is functioning properly and delivering the desired level of performance.
  • Synthetic monitoring: This involves using automated tools to simulate real-world usage scenarios and monitor the performance of the system under these conditions.
  • Real-user monitoring: This involves monitoring the performance of the system as it is being used by real users in a production environment.

There are many tools and technologies available for performance monitoring, including server monitoring tools, application performance management (APM) tools, and network monitoring tools. These tools typically allow you to set performance thresholds, receive alerts when performance issues arise, and perform root cause analysis to identify and resolve performance problems.

3. Design a Netflix clone.

To design a Netflix clone, you would need to consider the following high-level steps:

  • Define the scope of the project: Determine what features and functionality you want to include in your Netflix clone. This could include features like streaming video content, user profiles, recommendation algorithms, and more.
  • Choose a technology stack: Select the technologies and tools that you will use to build your Netflix clone. This could include a front-end framework like React or Angular, a back-end framework like Node.js or Ruby on Rails, and a database like MySQL or MongoDB.
  • Design the database: Determine how you will store and organize your data, including user information, movie and TV show metadata, and streaming data.
  • Develop the front-end: Create the user interface for your Netflix clone, including the home page, search and browse pages, and individual movie and TV show pages.
  • Develop the back-end: Implement the logic and functionality for your Netflix clone, including user authentication, recommendation algorithms, and streaming video content.
  • Test and debug: Thoroughly test your Netflix clone to ensure that it is functioning properly and fix any bugs or issues that arise.
  • Launch and maintain: Launch your Netflix clone and continuously monitor and maintain it to ensure that it is performing well and meeting the needs of your users.
  • Overall, building a Netflix clone will require a combination of design and development skills, as well as a strong understanding of user experience and database design. It will also require a robust and scalable infrastructure to support the streaming of video content to potentially millions of users.

5. Design an elevator system. 

To design an elevator system, you would need to consider the following high-level steps:

  • Define the scope of the project: Determine the requirements for your elevator system, including the number of elevators, the number of floors, the maximum capacity of each elevator, and any additional features or functionality that you want to include.
  • Choose a control system: Decide on the type of control system that you will use to manage the movement of the elevators. There are several options to choose from, including manual control, semi-automatic control, and fully automatic control.
  • Design the elevator car: Determine the size and layout of the elevator car, including the number of doors, the number of buttons, and any additional features like handrails or mirrors.
  • Design the shaft and hoistway: Determine the size and layout of the shaft and hoistway, including the size of the opening for the elevator car, the size of the counterweight, and any additional safety features like emergency brakes.
  • Choose a drive system: Select the type of drive system that you will use to move the elevator car up and down the shaft. There are several options to choose from, including traction drives, hydraulic drives, and geared drives.
  • Develop the control system software: Write the software that will be used to control the movement of the elevators based on the control system that you have chosen.
  • Test and debug: Thoroughly test your elevator system to ensure that it is functioning properly and fix any bugs or issues that arise.
  • Install and maintain: Install your elevator system in the desired location and continuously monitor and maintain it to ensure that it is performing well and meeting the needs of the users.

Overall, designing an elevator system requires a combination of engineering and programming skills, as well as a strong understanding of safety and reliability. It will also require a robust and scalable infrastructure to support the movement of the elevators and the transportation of potentially thousands of people.

6. Design a database for recording workouts.

To design a database for recording workouts, you would need to consider the following high-level steps:

  • Define the scope of the project: Determine the specific information that you want to track and store in your database, including the types of workouts, the exercises performed, the sets and reps, and any additional details like weights or time.
  • Determine the data model: Decide on the structure and relationships between the different entities in your database, including workouts, exercises, sets, and reps.
  • Choose a database management system: Select the software that you will use to store and manage your data, such as MySQL, PostgreSQL, or MongoDB.
  • Design the database schema: Create the schema for your database, including the tables and columns that you will use to store your data.
  • Populate the database: Enter the initial data into your database, including any workouts or exercises that you have already completed.
  • Develop the interface: Create the user interface for your database, including forms for entering and editing data, as well as reports and charts for analyzing and visualizing the data.
  • Test and debug: Thoroughly test your database to ensure that it is functioning properly and fix any bugs or issues that arise.
  • Maintain the database: Continuously monitor and maintain your database to ensure that it is performing well and meeting the needs of the users.

7. Design a database for a car dealership

To design a database for a car dealership, you would need to consider the following high-level steps:

  • Define the scope of the project: Determine the specific information that you want to track and store in your database, including the make and model of the cars, the year, the price, and any additional details like color, mileage, or options.
  • Determine the data model: Decide on the structure and relationships between the different entities in your database, including cars, customers, sales, and financing.
  • Choose a database management system: Select the software that you will use to store and manage your data, such as MySQL, PostgreSQL, or MongoDB.
  • Design the database schema: Create the schema for your database, including the tables and columns that you will use to store your data.
  • Populate the database: Enter the initial data into your database, including any cars and customers that you have already added to your inventory.
  • Develop the interface: Create the user interface for your database, including forms for entering and editing data, as well as reports and charts for analyzing and visualizing the data.
  • Test and debug: Thoroughly test your database to ensure that it is functioning properly and fix any bugs or issues that arise.
  • Maintain the database: Continuously monitor and maintain your database to ensure that it is performing well and meeting the needs of the users.

8. Create a UML diagram of a filesystem.

Here is a possible UML diagram for a filesystem:

[FileSystem]

  • rootDirectory: Directory

[Directory]

  • name: String
  • parentDirectory: Directory
  • subDirectories: List[Directory]
  • files: List[File]
  • addSubDirectory(subDirectory: Directory): void
  • deleteSubDirectory(subDirectory: Directory): void
  • addFile(file: File): void
  • deleteFile(file: File): void

[File]

  • name: String
  • parentDirectory: Directory
  • size: Long

This UML diagram defines three classes: FileSystem, Directory, and File. The FileSystem class represents the top-level container for the filesystem, and contains a single rootDirectory attribute of type Directory. The Directory class represents a directory within the filesystem, and contains attributes for the name of the directory, a reference to the parent directory, a list of subdirectories, and a list of files. It also includes several methods for adding and deleting subdirectories and files. The File class represents a file within the filesystem, and contains attributes for the name of the file, a reference to the parent directory, and the size of the file.

9. Describe how you would build an API for a DNS provisioning system.

To build an API for a DNS provisioning system, you would need to consider the following high-level steps:

  • Define the scope of the API: Determine the specific functionality that you want to expose through the API, including the ability to create, update, and delete DNS records, as well as the ability to perform domain name searches and registration.
  • Choose a programming language and framework: Select the programming language and framework that you will use to build your API. There are many options to choose from, including Python, Ruby, Java, and more.
  • Design the API endpoints: Determine the specific endpoints that you will expose through the API, including the HTTP methods (e.g., GET, POST, PUT, DELETE) and the parameters that will be required for each endpoint.
  • Implement the API logic: Write the code that will handle the incoming HTTP requests, validate the parameters, and perform the desired actions on the DNS records.
  • Test the API: Thoroughly test the API to ensure that it is functioning properly and returning the correct responses for different input scenarios.
  • Document the API: Create documentation for the API, including information about the endpoints, parameters, and response codes.
  • Deploy the API: Deploy the API to a hosting platform, such as AWS, Azure, or Heroku, and make it available to users.

Workday Behavioral Interview Questions

Answers to behavioral interview questions will vary depending on your own experience. In this section, we will share some points you can follow while answering such interview questions.

1. Why workday?

Workday is a software company that provides a cloud-based human capital management (HCM) and financial management platform for businesses. Some potential reasons to choose Workday as an employer or as a provider of software solutions may include:

  • Innovation: Workday is known for its focus on innovation and continuous improvement, which may be attractive to employees who value a forward-thinking company culture.
  • Customers: Workday has a large and diverse customer base, including many well-known and successful organizations, which may be appealing to those who want to work on interesting and impactful projects.
  • Growth: Workday has experienced strong growth in recent years and is expanding its product offerings and geographic presence, which may be attractive to those seeking opportunities for career advancement and growth.
  • Culture: Workday has a positive company culture that emphasizes collaboration, diversity, and inclusion, which may be appealing to those who value a supportive and inclusive work environment.
  • Benefits: Workday offers a comprehensive package of benefits to its employees, including health, dental, and vision insurance, retirement savings plans, and paid time off, among others.
  • It is important to keep in mind that these are just a few potential reasons to choose Workday, and the decision to work for or do business with any company should be based on a thorough evaluation of your own goals, priorities, and needs.

2. Which is the hardest project you worked on and why?

Which is the hardest project you worked on and why?" is a common question that may be asked in a job interview. It is a challenging question because it requires you to reflect on difficult experiences and to communicate your skills and capabilities in a way that is relevant to the interviewer. Here are some tips for answering this question effectively:

  • Choose a project that demonstrates your skills and abilities: Think about a project that was challenging or difficult for you and that allowed you to demonstrate your skills, such as problem-solving, teamwork, leadership, or adaptability. This will show the interviewer that you are capable of tackling difficult challenges and that you have valuable skills to offer.
  • Explain why the project was challenging: Be specific about the challenges you faced and how you addressed them. This will show the interviewer that you are able to think critically and that you have the ability to overcome obstacles.
  • Emphasize what you learned: Instead of focusing solely on the difficulties of the project, try to emphasize what you learned or gained from the experience. This will show the interviewer that you are a proactive and forward-thinking individual who is always looking to improve and grow.
  • Keep it positive: While it's important to be honest about the challenges you faced, it's also important to keep your response positive. Avoid complaining or dwelling on negative aspects of the project, and focus on the ways you were able to overcome obstacles and achieve success.

3. Which project are you the proudest of?

  • Choose a project that demonstrates your strengths: Think about the skills and qualities that are most relevant to the role you are applying for, and choose a project that demonstrates those strengths. For example, if you are applying for a project management role, you might choose a project where you successfully managed a team to deliver a complex project on time and on budget.
  • Provide context: Explain the scope and objectives of the project, and describe the challenges and obstacles you faced. This can help the interviewer get a better understanding of the project and the role you played in it.
  • Talk about your contributions: Describe the specific tasks and responsibilities you took on during the project, and highlight the specific contributions you made to the project's success.
  • Share the results: Explain the outcome of the project and how it benefited the company or organization. This can help to demonstrate the value of your work and the impact it had.
  • Be specific and concise: Keep your answer focused and avoid going into too much detail. Aim to provide a clear and concise summary of the project and your role in it.

4. Describe the most interesting project you worked on.

When answering this question, it's important to choose a project that you found genuinely interesting and that showcases your skills and abilities. The tips to answering this question are very similar to the previous question, except for the part where you’ll need to explain what made this project interesting to you.

  • Choose a project that demonstrates your strengths.
  • Provide context.
  • Talk about what made the project interesting to you: Explain what about the project captured your attention and why it was interesting to you. This could be the subject matter, the technical challenges, or the opportunity to work with a particular team or on a cutting-edge technology.
  • Share the results.
  • Be specific and concise.

5. Describe how you increased diversity in your previous company.

Describe how you increased diversity in your previous company" is a common question that may be asked in a job interview, particularly if the company places a high value on diversity, equity, and inclusion. Here are some tips for answering this question effectively:

  • Reflect on your efforts to increase diversity: Think about specific actions you took to promote diversity and inclusion in your previous company. This might include participating in diversity training, advocating for diversity in hiring and promotion decisions, or organizing events or initiatives that promote diversity.
  • Describe the impact of your efforts: Explain how your efforts to increase diversity had a positive impact on the company. This might include increasing the diversity of the workforce, improving the company's reputation, or creating a more inclusive and supportive work environment.
  • Emphasize your commitment to diversity: Make it clear that you are committed to promoting diversity and inclusion, and that you believe it is an important part of creating a successful and thriving company.
  • Avoid making generalizations or assumptions: Avoid making generalizations about diversity or assuming that all members of a particular group think or behave in a certain way. Instead, focus on specific actions you took and the impact they had on the company.

6. Where do you see yourself in 5 years?

"Where do you see yourself in 5 years?" is a common question that may be asked in a job interview or during a performance review. It can be a challenging question to answer because it requires you to think about your long-term goals and plans, and to communicate those goals in a way that is relevant to the interviewer or evaluator. Here are some tips for answering this question effectively:

  • Think about your long-term career goals: Take some time to consider what you want to achieve in your career over the next 5 years. This might include specific roles or responsibilities you are interested in, industries or organizations you want to work in, or skills or areas of expertise you want to develop.
  • Align your goals with the company's needs: Consider how your goals align with the needs and goals of the company. This will show the interviewer or evaluator that you are committed to contributing to the company's success and that your goals are realistic and achievable within the organization.
  • Be specific: Instead of giving vague or general responses, try to be specific about what you hope to accomplish in the next 5 years. For example, "I hope to be a manager in a team-oriented organization where I can contribute to the growth and success of the company," is more specific and specific than "I hope to be successful in my career."
  • Be realistic: While it's important to aim high and set ambitious goals, it's also important to be realistic about what you can achieve in the next 5 years. Avoid making grandiose or unrealistic claims about your future plans.
  • Be flexible: Keep in mind that your plans may change over time, and it's important to be open to new opportunities and challenges that may arise. Don't be too rigid in your plans, and be prepared to adapt and pivot as needed

7. What was a challenge you experienced in a project and how did you resolve it?

Here is an example of how you could structure your answer:

  1. Provide some context about the project, including the goals and your role.
  2. Describe the challenge that you faced in detail.
  3. Explain how you approached resolving the challenge.
  4. Describe the steps you took to resolve the challenge.
  5. Discuss the outcome of your efforts and any lessons you learned.

Here is an example of how you could apply this structure to answer the question:

"One challenge I experienced in a project was when we had to integrate a new piece of software into our existing system. This was a crucial part of the project as it was the main feature we were working on, but the software was not compatible with our system.

I approached this challenge by first identifying the root cause of the compatibility issue. I then worked with the development team to come up with a solution that would allow us to integrate the software without disrupting the existing system.

To resolve the challenge, we had to rewrite certain parts of the software and make some modifications to our system. This required a lot of collaboration and communication with the development team and the software vendor.

Ultimately, our efforts were successful and we were able to successfully integrate the software into our system. This was a major accomplishment for the project and it allowed us to deliver the main feature on time.

Through this experience, I learned the importance of being proactive in addressing issues that arise in a project and the value of teamwork in finding solutions."

Basic Interview Questions About Workday 

1. What is Workday?

Workday is a software company that provides enterprise cloud applications for finance and human resources management. The company's flagship product, also called Workday, is a suite of applications that includes tools for financial management, human capital management, payroll, and analytics.

Workday's applications are designed to be flexible and scalable, and can be customized to meet the needs of different organizations. They are also designed to be easy to use, with a modern user interface and intuitive navigation.

In addition to its core applications, Workday also offers a range of other products and services, including professional services, training and education, and customer support. The company serves a wide range of industries, including financial services, healthcare, government, education, and more.

Workday is a leading provider of cloud-based applications for finance and human resources management, with a focus on flexibility, scalability, and ease of use.

2. What are the advantages of Workday?

There are several advantages to using Workday, including:

  • Cloud-based delivery: Workday's applications are delivered as a service over the internet, which means that they can be accessed from anywhere and do not require complex on-premises infrastructure. This can make it easier and more cost-effective to deploy and manage Workday's applications.
  • Scalability: Workday's applications are designed to be highly scalable, which means that they can handle large volumes of data and transactions without performance degradation. This can be particularly useful for organizations that experience rapid growth or seasonal spikes in activity.
  • Customization: Workday's applications are highly configurable, which means that they can be customized to meet the specific needs of different organizations. This can help to ensure that the applications align with an organization's business processes and requirements.
  • Integration: Workday's applications are designed to be integrated with a wide range of other systems and technologies, including other enterprise applications, data sources, and third-party tools. This can help to ensure that Workday's applications can be seamlessly integrated into an organization's existing IT environment.
  • Security: Workday places a strong emphasis on security and compliance, and has a number of measures in place to protect customer data and ensure compliance with various regulations and standards.

The advantages of Workday include its cloud-based delivery, scalability, customization, integration capabilities, and security.

3. What companies use Workday?

Workday is a cloud-based human capital management and financial management software company that provides a suite of applications for managing human resources, payroll, benefits, time and attendance, and financial accounting. Many large and mid-sized companies use Workday to manage their HR and financial processes. 

Some examples of companies that use Workday include Adobe, Airbnb, Alaska Airlines, eBay, Dropbox, Expedia, HP, Salesforce, and Siemens. Workday is also used by educational institutions, non-profit organizations, and government agencies.

4. What database does Workday run on?

Workday uses a proprietary database system that is optimized for the specific needs of the Workday applications. The Workday database is a distributed, in-memory database that is designed to support the scalability, reliability, and performance requirements of Workday's cloud-based HR and financial management applications. Workday's database uses a column-oriented data model, which allows for faster query processing and data retrieval, and is optimized for handling large amounts of data. Workday's database also uses a multi-tenant architecture, which allows the database to support multiple customers on a single instance of the database, while maintaining the security and privacy of each customer's data.

5. How to access a Workday Standard Delivered Report?

To access a Workday standard delivered report, you will need to have a Workday account and be logged in to the Workday application.

Here is a general outline of the steps you can follow to access a standard delivered report:

  1. Navigate to the "Reports" module in the Workday application. This is usually located in the main navigation menu.
  2. In the "Reports" module, you will see a list of report categories. Select the category that contains the standard delivered report you want to access.
  3. Within the report category, you will see a list of reports. Locate the standard delivered report you want to access and click on it.
  4. Some standard delivered reports may have input parameters that you will need to specify in order to run the report. Follow the prompts to enter the necessary input parameters.
  5. Once you have entered the input parameters (if applicable), click the "Run" button to generate the report. The report will be displayed in a new window or tab, depending on your browser settings.
  6. You can save the report as a PDF or Excel file by clicking the "Export" button and selecting the desired file format.

Note: The specific steps and user interface may vary depending on your Workday instance and the version of the Workday application you are using. If you are unsure how to access a standard delivered report, you may want to ask your Workday administrator or refer to the Workday documentation for more detailed instructions.

6. What are Workday Integrations?

Workday integrations refer to the process of connecting Workday, a cloud-based human capital management and financial management software, with other software applications or systems. This can allow organizations to exchange data and automate business processes between Workday and other systems, improving efficiency and reducing the need for manual data entry.

There are several types of Workday integrations that organizations can use, including:

  • Real-time integrations: These integrations allow Workday to exchange data with other systems in real-time, as soon as a change is made. This can be useful for automating business processes that require immediate action or notification.
  • Batch integrations: These integrations allow Workday to exchange data with other systems on a scheduled basis, such as daily or weekly. This can be useful for transferring large amounts of data or for integrating systems that do not require real-time data exchange.
  • API integrations: Workday provides a set of APIs (Application Programming Interfaces) that allow developers to build custom integrations between Workday and other systems. This can be useful for organizations that have specific integration requirements that are not covered by Workday's standard integration options.
  • Cloud connector integrations: Workday offers a set of pre-built integrations called "Cloud Connectors" that allow organizations to quickly and easily connect Workday with popular cloud-based applications such as Salesforce, Google G Suite, and Microsoft Office 365.

Workday integrations can be configured and managed through the Workday Integration Cloud, a cloud-based platform that provides tools and services for building, deploying, and managing integrations between Workday and other systems.

7. Describe workday payroll?

Workday Payroll is a software application that is used by organizations to manage their payroll processes and employee compensation. It allows companies to process and manage payroll, benefits, tax compliance, and other HR-related tasks.

Some of the key features of Workday Payroll include:

  • Payroll processing: This includes calculating employee salaries, deductions, and benefits, and generating pay stubs and paychecks.
  • Tax compliance: Workday Payroll helps organizations stay compliant with local, state, and federal tax laws by calculating and withholding the appropriate taxes from employee pay.
  • Benefits administration: Workday Payroll allows organizations to manage employee benefits such as health insurance, retirement plans, and other perks.
  • Time and attendance tracking: Workday Payroll can be integrated with time and attendance systems to track employee hours worked, overtime, and time off.
  • Reporting and analytics: Workday Payroll provides a variety of reports and analytics tools to help organizations track payroll expenses and make informed decisions about employee compensation.

8. What are the ways to create a report in Workday?

There are several ways to create a report in Workday:

  • Use the Report Writer: The Report Writer is a tool within Workday that allows you to create custom reports using a visual interface. You can select the data you want to include in the report, apply filters and calculations, and choose the layout and formatting.
  • Use the Report Library: Workday includes a library of pre-built reports that you can use as a starting point for your own reports. You can customize these reports by applying filters, changing the layout and formatting, and adding additional data fields.
  • Use a third-party reporting tool: There are several third-party tools that can be used to create reports from Workday data. These tools often offer more advanced features and customization options than the Report 
  • Writer and Report Library.
  • Use Workday's API: If you are a developer, you can use Workday's API to extract data from the system and build custom reports. This option requires a good understanding of programming and may be more suitable for advanced users.

9. What is the use of Domain Security Policies?

Domain security policies are rules that are used to manage access to resources within a domain in a computer network. They are typically implemented through a combination of software and hardware controls and can be used to secure various types of resources, including servers, workstations, applications, and data.

Some examples of domain security policies include:

  • Password policies: These policies define rules for creating and managing passwords, such as minimum length, complexity, and expiration.
  • Access control policies: These policies define which users or groups have access to specific resources and what actions they are allowed to perform.
  • Network security policies: These policies define rules for securing the network itself, such as firewalls, intrusion detection systems, and encryption protocols.
  • Data security policies: These policies define rules for protecting sensitive data, such as data encryption, data backup and recovery, and data retention.

Domain security policies help organizations secure their networks and resources and ensure that access to sensitive information is controlled and properly managed

10. How do you manage access to integrations?

There are several ways to manage access to integrations in Workday:

  • Use integration security policies: Workday allows you to define integration security policies that specify which users or groups have access to specific integrations and what actions they are allowed to perform.
  • Use integration user accounts: You can create separate user accounts for integration users, and assign specific permissions and roles to these accounts. This can help you control access to integrations and ensure that integration users only have the permissions they need to perform their duties.
  • Use integration security groups: You can create security groups for integration users and assign permissions and roles to these groups. This can help you manage access to integrations more efficiently, as you can assign permissions to the group rather than to individual users.
  • Use integration access profiles: You can create integration access profiles that define the permissions and roles that integration users have within Workday. These profiles can be assigned to individual users or groups of users, and can help you control access to integrations more granularly.

Managing access to integrations in Workday involves defining the permissions and roles that integration users have within the system, and ensuring that access to integrations is properly controlled and secured.

FAQs About Workday Interviews

1. Are Workday interviews hard?

Like any interview, the difficulty of a Workday interview can vary depending on the specific role and the qualifications of the candidate. In general, it is always a good idea to prepare thoroughly for an interview and to be knowledgeable about the company and the specific position for which you are applying. This can help you feel more confident and better equipped to handle any questions that come your way. 

Some common types of questions that may come up in a Workday interview include technical questions about the company's products or services, questions about your past work experience and achievements, and behavioral questions designed to assess your fit with the company's culture and values.

2. What do I need to know for a Workday interview?

  • Research the company: Familiarize yourself with Workday's mission, values, products, and services. This can help you understand the company's goals and how you might be able to contribute to them.
  • Review the job description: Carefully review the job description for the position you are applying for, and make sure you understand the duties and responsibilities involved. This can help you tailor your responses to the interviewer's questions.
  • Prepare answers to common interview questions
  • Prepare questions to ask the interviewer: It is usually a good idea to have a few questions of your own to ask the interviewer. This can demonstrate your interest in the company and the role, and can also give you a better sense of whether the position is a good fit for you. Some questions you might consider asking include "What does a typical day look like for someone in this role?", "What are the long-term goals for this team?", and "What opportunities are there for growth and development within the company?".
  • Dress appropriately: Make sure to dress professionally for your interview. This can help you make a good impression and show that you take the opportunity seriously.

3. What is Workday interview process?

The Workday interview process may vary depending on the specific role and location, but in general, it typically includes several rounds of interviews with different people within the company. These interviews may be conducted in person, by phone, or via video conference, depending on the circumstances.

The first round of interviews is often a screening interview, which is typically conducted by a recruiter or HR representative. This interview is usually focused on your basic qualifications and experience, and may include questions about your resume, your education, and your career goals.

If you are successful in the first round, you may be invited to participate in additional rounds of interviews with team members or managers from the department in which you would be working. These interviews may be more technical in nature and may focus on your specific skills and experience related to the role.

It is not uncommon for the Workday interview process to include a mix of individual and group interviews, as well as assessments or other activities designed to assess your fit with the company's culture and values. It is a good idea to be prepared for a variety of formats and types of questions, and to be flexible and adaptable as you move through the process.

How to Nail Your Next Workday Interview

If you’re looking for guidance and help with getting your prep started, sign up for our free webinar. As pioneers in the field of technical interview prep, we have trained thousands of software engineers to crack the toughest coding interviews and land jobs at their dream companies, such as Google, Facebook, Apple, Netflix, Amazon, and more!

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