10 Kubernetes Real-World Questions Solved in 15 Min | Hands-On for DevOps Interviews - Set-3

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📝 Description: In this video, we dive into Kubernetes scenario-based questions 21–30 , covering real-world troubleshooting, rollout strategies, networking, and deployments every DevOps, Developer, or QA Engineer must know. These are advanced, hands-on Kubernetes interview questions explained with examples to help you think like a Kubernetes pro. 👉 Today’s questions are based on Chapter 4 – Kubernetes Deployment and Chapter 5 – Kubernetes Services & DNS from the Kubernetes zero to Interview Hero series. For Concepts: 👉 Chapter 4 — Kubernetes ReplicaSets & Deployments Explained in 20 Min: https://youtu.be/K5_6nDyPJz8 👉 Chapter 5 — Kubernetes Services & DNS Explained in 30 Min: https://youtu.be/-aYxWOM8DsI Related Cources- 🎓 Kubernetes Zero To Interview Hero — Free Course 👉 https://www.youtube.com/playlist?list=PL8h_iS3fGq0KYUn8JfXF86pAzssaH_Frn 🎓 100 Real-World Kubernetes Failures & Fixes | Full Hands-On Troubleshooting Series 2025 👉 https://www.youtube.com/playlist?list=PL8h_iS3fGq0K38XpD4jcwYWDZ_D08cuhh Timestamps / Scenarios Covered 00:00 — Intro 00:45 — Q21 Zero-downtime rollout with instant rollback 01:55 — Q22 Blue-Green deployment with replica scaling 02:47 — Q23 Canary deployment strategy for gradual rollout 03:44 — Q24 Auto image updates & instant rollback 05:23 — Q25 Internal Service communication (frontend ↔ backend) 07:04 — Q26 Exposing app externally via NodePort 08:05 — Q27 Public API exposure using LoadBalancer Service 09:43 — Q28 Exposing app in on-prem Kubernetes cluster 10:50 — Q29 StatefulSet with Headless Service (Cassandra example) 11:41 — Q30 External DB connection using ExternalName Service 🎯 What You’ll Learn: Zero-downtime rollouts & rollback planning Blue-Green & Canary deployment patterns Kubernetes Service types (ClusterIP, NodePort, LoadBalancer, Headless, ExternalName) Networking & DNS concepts in Kubernetes Real-world DevOps troubleshooting & automation ideas 💡 Perfect for: DevOps Engineers Kubernetes Administrators QA/Test Automation Engineers Cloud-Native Developers preparing for interviews 🔖 Related Playlists: Kubernetes Interview Questions (Set 1–2) DevOps Real-Time Scenarios Kubernetes Hands-On Labs 📌 Hashtags: #Kubernetes #K8s #DevOps #CloudNative #KubernetesInterview #K8sTutorial #BlueGreenDeployment #CanaryDeployment #KubernetesServices #Containers #CI_CD #Microservices #TestingInKubernetes