Kubernetes — Navigate Kubernetes interview questions and answers, exploring container orchestration, scalability, and microservices.

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Question: Can you provide a brief overview of Kubernetes and its key components?

Answer: Kubernetes is an open-source container orchestration platform that automates the deployment, scaling, and management of containerized applications. Key components include the Master (API server, etcd, controller manager, scheduler) and Nodes (containers, kubelet, kube-proxy).

Question: What is a Pod in Kubernetes, and why is it the smallest deployable unit?

Answer: A Pod is the smallest deployable unit in Kubernetes, representing a group of one or more containers. Containers within a Pod share the same network namespace, allowing them to communicate easily. Pods are the basic building blocks as they enable tight coupling of related containers.

Question: How does Horizontal Pod Autoscaling work in Kubernetes?

Answer: Horizontal Pod Autoscaling adjusts the number of running pods in a deployment based on observed CPU utilization or custom metrics. It automatically increases or decreases the number of replicas to handle changes in demand, ensuring optimal resource usage.