Abhay Singh Kathayat

Posted on Jan 22

Kubernetes Advanced Interview Prep: 100 Questions for Experienced Developers

#kubernetesinterview #advancedkubernetes #kubernetesmastery #devopsinterview

What is Kubernetes, and how does it differ from traditional container orchestration?
Explain the architecture of a Kubernetes cluster.
What are the main components of a Kubernetes cluster?
Describe the purpose of the Kubelet, API server, and Controller Manager.
How does Kubernetes manage containerized applications in production?
What is the role of the Kubernetes Master Node and Worker Nodes?
What are Pods, and how do they differ from containers?
How does Kubernetes handle container scheduling?
What are Namespaces in Kubernetes, and why are they used?
How do you define resource limits and requests for containers in Kubernetes?

What is the difference between a Pod and a Deployment in Kubernetes?
How do you scale a Kubernetes Deployment?
Explain the lifecycle of a Pod in Kubernetes.
What are the different Pod scheduling policies in Kubernetes?
What is the purpose of a ReplicaSet in Kubernetes?
How does Kubernetes handle Pod health checks (readiness and liveness probes)?
How do you manage Pod networking in Kubernetes?
What are taints and tolerations in Kubernetes, and how are they used?
How do you create a multi-container Pod in Kubernetes, and why would you use it?
Explain affinity and anti-affinity rules in Kubernetes.

What is the purpose of a Service in Kubernetes?
Explain the different types of Kubernetes services (ClusterIP, NodePort, LoadBalancer, ExternalName).
How do Kubernetes Services work with DNS?
What is the role of the Kubernetes Ingress resource?
How does Kubernetes handle service discovery within a cluster?
What is the purpose of the CoreDNS service in Kubernetes?
How does Kubernetes handle Pod-to-Pod communication in the same cluster?
What is the concept of Network Policies in Kubernetes?
How do you set up TLS encryption in Kubernetes services?
How do you implement load balancing in Kubernetes?

What are Persistent Volumes (PV) and Persistent Volume Claims (PVC) in Kubernetes?
What are the different types of StorageClasses in Kubernetes?
Explain the difference between ephemeral storage and persistent storage in Kubernetes.
How do you mount a volume in a Kubernetes Pod?
What are the benefits of using dynamic provisioning for storage in Kubernetes?
What is StatefulSet, and how does it differ from a Deployment?
What are the different types of volumes in Kubernetes?
How do you configure a shared storage volume for multiple Pods in Kubernetes?
What is the role of Helm in managing Kubernetes resources, and how does it relate to storage management?
How do you handle data persistence in stateless applications running in Kubernetes?

How does Kubernetes Horizontal Pod Autoscaling (HPA) work?
Explain the concept of Vertical Pod Autoscaling in Kubernetes.
How does Kubernetes handle cluster autoscaling?
How do you manually scale a Kubernetes deployment?
What are ReplicaSets and how do they support scaling in Kubernetes?
What is the role of the Kubernetes Metrics Server in autoscaling?
How does Kubernetes support auto-scaling for stateless and stateful applications?
What is Cluster Autoscaler, and how does it interact with Kubernetes nodes?
How do you set up scaling rules for applications running in Kubernetes?
How does resource requests and limits affect scaling in Kubernetes?

What are the best practices for securing a Kubernetes cluster?
How does Kubernetes handle role-based access control (RBAC)?
What are Service Accounts, and how do they work in Kubernetes?
How do you manage secrets in Kubernetes?
What is the PodSecurityPolicy, and how does it enhance Kubernetes security?
How do you encrypt data at rest and in transit in Kubernetes?
How can you audit and monitor security-related events in Kubernetes?
What are Network Policies, and how do they help secure Kubernetes clusters?
How do you prevent unauthorized access to Kubernetes clusters?
What is Kubernetes Security Context, and how is it used to restrict container privileges?

What tools can be used to monitor Kubernetes clusters?
How would you troubleshoot Pod failures in Kubernetes?
How do you check the logs of a running container in Kubernetes?
How do you debug a Kubernetes deployment using kubectl?
What are Kubernetes events, and how can they be useful for debugging?
How do you check the status of a Kubernetes cluster?
How can you inspect the health of nodes and pods in a Kubernetes cluster?
What are the common reasons for Kubernetes deployment failures, and how would you fix them?
How do you handle resource exhaustion (memory, CPU, disk) in Kubernetes?
How do you debug issues related to Kubernetes networking?

How can Kubernetes integrate with CI/CD pipelines?
What is the role of Helm in a Kubernetes CI/CD pipeline?
How do you implement rolling updates in a Kubernetes deployment?
How do you perform canary releases in Kubernetes?
What are the steps to set up CI/CD with Kubernetes using Jenkins or GitLab CI?
How does Kubernetes manage blue/green deployments?
How do you deploy a containerized application to Kubernetes using a CI/CD pipeline?
What are the challenges of deploying stateful applications in Kubernetes via CI/CD?
How do you handle versioning and rolling back deployments in Kubernetes?
How can you automate the scaling of Kubernetes deployments as part of a CI/CD process?

Explain the concept of Kubernetes Federation and its use cases.
What is the role of Custom Resource Definitions (CRDs) in Kubernetes?
How do you manage cross-cluster communication in Kubernetes?
How can you use Kubernetes Operators for automating complex tasks?
What are the benefits and challenges of using Kubernetes StatefulSets?
How do you integrate Kubernetes with legacy systems?
What is Helm Chart Repositories, and how are they used in Kubernetes?
What are the benefits of using Kubernetes in hybrid or multi-cloud environments?
How do you implement service meshes (like Istio) in Kubernetes?
How does Kubernetes handle multi-tenancy?

How do you perform a Kubernetes version upgrade?
What are the challenges when upgrading Kubernetes, and how do you mitigate them?
How do you manage backup and restore in Kubernetes?
What are the best practices for upgrading Kubernetes nodes?
How do you handle node failures and recovery in Kubernetes?
What is the process to reconfigure the Kubernetes control plane components?
How do you ensure zero downtime during a Kubernetes upgrade?
How do you monitor Kubernetes upgrade progress?
What strategies can be used for cluster disaster recovery in Kubernetes?
How do you ensure the availability and resilience of Kubernetes clusters in a production environment?

DEV Community