Kubernetes or K8s is an open-source container orchestration system designed by Google. It is used for automating software deployment, scaling, and management. While Google designed it initially, the Cloud Native Computing Foundation maintains the project now. This article discusses Kubernetes interview questions to help you with your interview preparation.
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In this article, we’ll cover:
Here are some Kubernetes interview questions and answers to give you an idea of what to expect:
The five types of controller managers are endpoints, service accounts, node, namespace, replication, and token controller manager.
Namespaces divide cluster resources between users, provide a scope of resources, and help the environment where multiple users spread teams or projects.
Daemon sets refer to a set of pods that runs on a host and are used for host layers attributes like simple or monitoring network. The Kubernetes controller manager refers to a daemon that helps with garbage collection, namespace creation, and core control loops. It allows multiple processes to run on the master node.
A Heapster in Kubernetes refers to a metrics collection and performance monitoring system for data the Kublet collects.
Kube-scheduler works as the default scheduler for Kubernetes. It works by assigning nodes to newly created pods.
Here are some basic Kubernetes interview questions to get you started:
Now, check these Kubernetes interview questions to gauge your preparation level:
Lastly, here are some Kubernetes DevOps interview questions for your interview prep:
Q1. What are some key components of Kubernetes?
The Control plane, Kubelet, Kube-proxy, Kube controller manager, Etcd, and cloud controller manager are some of the key components of Kubernetes.
Q2. What is responsible for assigning a node to newly created pods in Kubernetes?
The Kube-scheduler is responsible for assigning a node to newly created pods in Kubernetes.
Q3. What task is Kubeproxy responsible for in Kubernetes?
Kube-proxy helps in maintaining the network rules on nodes.
Q4. What are objects used for in Kubernetes?
Objects are used in Kubernetes to represent the state of a cluster. Objects in Kubernetes are persistent entities in the cluster and represent the state of the cluster.
Q5. Where are Kubernetes objects stored?
Kubernetes objects are stored in the Kubernetes cluster storage, usually in Etcd.
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