2025 top 30 Kubernetes Questions and Answers with Expert

[@dayatem]

I had to save this half way in, to continue later. thanks for this

[@BeyondtheStrugglei7t]

Thanks this was awesome

[@Spookyl._.l]

This is a great video, I had to save it and rewatch it a second time. Keep up the good work

[@fullsleevetats]

Questions from the video: * Q1: 1:12 - "Imagine you need to create a Kubernetes pod running on an Nginx container, and you have a manifest file that contains all the necessary specifications. Can you walk me through how you will go about applying this manifest file and ensuring the pods are running as expected?" * Q2: 4:27 - "Picture a scenario where you had several pods needing to communicate with one another using DNS. Could you walk me through how Kubernetes handles DNS resolution enabling pods to discover and communicate with each other? Additionally, could you provide an example illustrating two pods effectively communicating through DNS within the Kubernetes cluster?" * Q3: 7:00 - "Could you share your experience with the types of Kubernetes clusters you have worked with in the past? And have you had the opportunity to create a Kubernetes cluster from the ground up, managing all of its aspects independently?" * Q4: 9:56 - "Can you explain how Kubernetes handles multi-node clusters, and how would you go about setting up a highly available Kubernetes cluster from scratch, ensuring fault tolerance and scalability?" * Q5: 14:13 - "In a scenario where you need to deploy a stateful application on Kubernetes, can you walk me through how you would use StatefulSets and persistent volumes, and explain the role of Persistent Volume Claims (PVCs) in ensuring data persistence?" * Q6: 16:35 - "Imagine a scenario where multiple pods need to securely communicate with each other across namespaces. Could you explain how Kubernetes networking policies work, and how you would configure network policies to restrict communication between specific pods?" * Q7: 18:33 - "Have you ever created or managed custom resources in Kubernetes? Can you explain how you would develop a custom resource definition (CRD) and an operator to manage the lifecycle of a non-standard application in the cluster?" * Q8: 20:26 - "Could you describe your experience with Helm in Kubernetes? How would you create and manage Helm charts, and what steps would you take to deploy an application to multiple environments with different configurations using Helm?" * Q9: 23:10 - "How does Kubernetes manage resources within pods, and can you walk me through how you would use resource requests and limits to ensure efficient resource allocation and prevent a pod from consuming excessive CPU or memory?" * Q10: 26:43 - "Imagine you are tasked with scaling a microservices-based application. How would you use Kubernetes Horizontal Pod Autoscaling (HPA) to automatically scale your application based on CPU usage? Can you also explain the role of custom metrics in scaling?" * Q11: 29:10 - "Can you explain the difference between pod affinity and pod anti-affinity in Kubernetes, and how would you use these features to schedule pods in a way that ensures certain workloads are deployed together or kept apart?" * Q12: 31:19 - "Could you walk me through how Kubernetes Pod Disruption Budgets (PDBs) work? In a production environment with critical applications, how would you configure a Pod Disruption Budget to prevent voluntary disruptions from affecting service availability?" * Q13: 33:18 - "Have you worked with Kubernetes Federation? If so, how would you go about setting up Kubernetes Federation to enable cross-cluster workloads and ensure high availability across different regions or data centers?" * Q14: 36:42 - "How would you secure a pod running a containerized application in Kubernetes? Could you explain the concept of security context and how you would use Pod Security Policies (PSPs) to enforce security standards for pod deployments?" * Q15: 38:43 - "In a multi-user environment, how would you configure Kubernetes RBAC to ensure proper permissions are assigned to various roles? Can you provide an example of how to create a custom role with specific privileges for a developer?" * Q16: 40:49 - "Can you explain the role of the kubelet in node management, and how would you ensure that nodes are healthy and that Kubernetes can effectively schedule workloads across them, especially in a large-scale production environment?" * Q17: 42:57 - "How would you set up centralized logging and monitoring for a Kubernetes cluster? What tools and frameworks would you use to gather, analyze, and visualize logs and metrics from the Kubernetes environment?" * Q18: 45:53 - "Describe your experience with upgrading a Kubernetes cluster in a production environment. What steps would you take to ensure zero downtime and avoid disruption during the upgrade process?" * Q19: 49:11 - "Can you explain how Kubernetes Ingress controllers work and how they interact with services to provide load balancing and route traffic? What are the key considerations when configuring an Ingress controller for production environments?" * Q20: 51:34 - "How does Kubernetes handle pod restarts, shutdowns, and lifecycle events?"