Microservices are a key concept discussed in technical interviews for software engineers. Java Microservices interview questions are typically asked of experienced software engineers during coding and design interviews. In this article, we'll look at frequently asked Java Microservices interview questions for fresher and experienced developers to help you ace your tech interview.
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Let’s look at some popular Java Microservices interview questions that frequently feature in technical interviews.
Here’s what we’ll cover:
In this section, we’ll look at the most frequently asked Java Microservices interview questions and answers that you can expect at your Java developer interview.
Some popular Java Microservices frameworks are:
Some main features of Microservices are:
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This is one of the most common Java Microservices interview questions asked in technical interviews.
Communication takes place in two fashions:
Synchronous Communication - Synchronous Communication can occur through HTTP, FeignClient, WebClient, and Ribbon, using the RestTemplate.
Asynchronous Communication - Asynchronous Communication occurs when the user doesn’t require an immediate response. This mode of communication can be achieved using Kafka, JMS Implementation, or RabbitMQ.
Contract testing is useful when multiple Microservices need to communicate with each other. It is mainly used to detect irregularities in application configuration and consumer workflow.
Actuators in Spring Boot are sub-projects used to provide Restful web services. Restful services are important to assess the current state of the application.
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Let’s look at some additional concept-based Java Microservices interview questions to help you prepare for your Java developer interview.
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These Java Microservices interview questions will help you prepare for your next Java developer interview.
Q1. Why is Java a preferred language for Microservices?
Java is the most preferred language to write Microservices because its annotation syntax is the easiest to read among other OOP languages. Frameworks like Spring Boot and Angular make it easy to code Microservices applications.
Q2. What do you understand about Microservices in Java?
Microservices are fundamentally a collection of software applications that perform limited, individual tasks in a modular format. Each individual component contributes to the program’s functioning, and each Microservice has its own code components.
Q3. What types of Java Microservices interview questions can you expect?
You can expect Java Microservices interview questions at coding and systems design interviews, mostly for programmers with experience.
Q4. Is Spring Boot built to write Java Microservice applications?
Although Spring Boot can be used to write Microservices, it isn’t built only to write Microservices applications. It can also be used to write advanced software programs in Java.
Q5. What is the use of ZULL in Microservices applications?
ZULL is essentially an Application Program Interface Gateway application used to ensure optimal monitoring, dynamic routing, and resilience of applications.
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At Interview Kickstart, we’ve trained over 9,000 engineers to land lucrative offers at the biggest tech companies. Our instructors, who are FAANG hiring managers, know what it takes to nail tough tech interviews at top technology companies.