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42 Kubernetes interview questions

Only coding challenges

Topic progress: 0%

Kubernetes Basics

1.
What is Kubernetes, and why is it used for container orchestration?
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2.
Describe the roles of master and worker nodes in the Kubernetes architecture.
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3.
How do Pods facilitate the management of containers in Kubernetes?
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4.
What types of Services exist in Kubernetes, and how do they facilitate pod communication?
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5.
Explain the functionality of Namespaces in Kubernetes.
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Kubernetes Objects and Workloads

6.
Differentiate between Deployments, StatefulSets, and DaemonSets.
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7.
How do ReplicaSets ensure pod availability?
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8.
What are Jobs in Kubernetes, and when is it suitable to use them?
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9.
How do Labels and Selectors work together in Kubernetes?
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10.
What would you consider when performing a rolling update in Kubernetes?
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Kubernetes Networking

11.
How do Services route traffic to pods in Kubernetes?
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12.
Describe the purpose of Ingress and its key components.
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13.
Explain Kubernetes DNS resolution for services.
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14.
What is the Container Network Interface (CNI), and how does it integrate with Kubernetes?
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15.
How do you implement Network Policies, and what are their benefits?
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Kubernetes Storage

16.
How do PersistentVolumes (PVs) and PersistentVolumeClaims (PVCs) interact in Kubernetes?
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17.
Explain dynamic provisioning in relation to StorageClasses.
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18.
What strategies exist for handling persistent data when a pod’s lifecycle ends?
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Kubernetes Cluster Management

19.
Describe the process for initializing a Kubernetes cluster.
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20.
What factors need to be considered when adding new nodes to a Kubernetes cluster?
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21.
How does draining a node affect the running applications, and when should you perform this action?
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22.
In what scenarios would you scale a Kubernetes deployment, and what tools would you use?
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Kubernetes Security

23.
Explain Role-Based Access Control (RBAC) in Kubernetes.
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24.
Describe how to securely manage Secrets in Kubernetes.
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25.
What is a security context, and how does it apply to pod security?
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26.
How do NetworkPolicies contribute to pod security, and how would you implement them?
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Observability and Monitoring

27.
Describe the role and capabilities of the Metrics Server in a Kubernetes cluster.
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28.
How can Prometheus be configured to monitor Kubernetes components?
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29.
Discuss the integration of Grafana for Kubernetes observability.
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Kubernetes Scheduling and Scalability

30.
How can you use Node Selectors and Affinity rules to influence pod placement?
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31.
Explain Horizontal Pod Autoscaling (HPA) and its triggers within Kubernetes.
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Kubernetes Troubleshooting and Debugging

32.
What steps would you take to troubleshoot a pod that is not starting?
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33.
How would you diagnose network issues in Kubernetes?
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Advanced Kubernetes Features

34.
Define Custom Resource Definitions (CRDs) and their utility in Kubernetes.
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35.
Discuss the functionalities provided by a Service Mesh like Istio in Kubernetes.
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36.
What are the use cases for Kubernetes Federation?
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Kubernetes Ecosystem and Tools

37.
How does Helm enhance application management within Kubernetes?
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38.
Explain the role of Kustomize in Kubernetes configuration management.
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39.
Describe the importance of a Container Registry in a Kubernetes environment.
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Best Practices in Kubernetes

40.
What best practices would you follow for high availability in Kubernetes deployments?
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41.
How do ConfigMaps and Secrets improve configuration management?
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42.
Describe multitenancy considerations for resource utilization in Kubernetes.
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