Kubernetes for DevOps (60 Questions)

For Absolute Beginners (20 Questions):

What is Kubernetes, and why is it important for container orchestration?
Explain the concept of a Kubernetes pod.
How does Kubernetes handle container scaling?
What is a Kubernetes service, and why is it useful?
Describe the role of a Kubernetes controller.
What are labels and selectors in Kubernetes?
How do you create a deployment in Kubernetes?
What is a Kubernetes namespace, and why would you use it?
How does Kubernetes manage secrets and configuration data?
What is the difference between a StatefulSet and a Deployment in Kubernetes?
What is the difference between a Kubernetes deployment and a Kubernetes pod?
How do you expose a Kubernetes service externally?
What are liveness and readiness probes in Kubernetes, and why are they important?
Describe the concept of a Kubernetes secret and its use cases.
How can you upgrade a Kubernetes cluster to a new version?
What is a Kubernetes persistent volume (PV), and how does it differ from a persistent volume claim (PVC)?
How do you manage configuration files (such as YAML manifests) for Kubernetes resources?
What is the purpose of a Kubernetes init container?
Explain the concept of a Kubernetes daemon set.
How can you perform rolling restarts for pods in a Kubernetes deployment?

Explain the concept of a Kubernetes replica set.
How do you perform rolling updates in Kubernetes?
What is a Kubernetes ingress, and how does it work?
Describe the role of a Kubernetes scheduler.
How do you troubleshoot a pod that is not running as expected?
What are Kubernetes resource quotas, and how do they impact cluster management?
How can you secure communication between Kubernetes components?
What is a Kubernetes ConfigMap, and how do you use it?
Discuss the benefits of using Helm for managing Kubernetes applications.
How do you monitor and visualize Kubernetes cluster health?
What is a Kubernetes StatefulSet, and when would you use it?
How do you handle secrets and sensitive data in Kubernetes securely?
Discuss the benefits and drawbacks of using Helm charts for application deployment.
What is a Kubernetes custom resource (CR), and how can you create one?
How do you set resource limits and requests for containers in a Kubernetes pod?
Describe the process of setting up a Kubernetes ingress controller.
What is the role of a Kubernetes network policy, and how does it enhance security?
How can you horizontally autoscale a Kubernetes deployment based on CPU utilization?
Explain the concept of Kubernetes affinity and anti-affinity rules.
How do you troubleshoot and diagnose performance issues in a Kubernetes cluster?

Explain the concept of a Kubernetes custom resource definition (CRD).
How do you handle rolling back a failed deployment in Kubernetes?
Discuss the challenges of managing stateful applications in Kubernetes.
What is the role of a Kubernetes operator?
How can you optimize resource utilization in a large-scale Kubernetes cluster?
Describe the process of setting up a multi-cluster Kubernetes federation.
How do you implement network policies in Kubernetes for security?
What are the differences between Helm v2 and Helm v3?
Discuss the use of Kubernetes Operators for managing databases.
How would you design a highly available and fault-tolerant Kubernetes architecture?
What is the role of a Kubernetes admission controller, and how can you customize it?
Discuss the use of Kubernetes custom metrics for autoscaling.
How do you manage multi-tenancy in a large Kubernetes cluster?
What is the difference between a Kubernetes job and a Kubernetes cron job?
How can you achieve high availability for etcd in a Kubernetes control plane?
Describe the process of setting up a Kubernetes federation for global deployments.
What are the best practices for securing Kubernetes API server endpoints?
How do you handle rolling updates for stateful applications in Kubernetes?
Discuss the use of Kubernetes Operators for managing complex applications.
How would you design a disaster recovery strategy for a critical Kubernetes workload?