Quiz: Kubernetes Basics

5 questionsNo time limitPass: 60%+10 XP on first pass

Why Kubernetes exists, its architecture (control plane and nodes), the core objects — Pod, Deployment, ReplicaSet, Service, Ingress, ConfigMap, Secret — with real YAML, kubectl commands, rolling updates, health probes and autoscaling.

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Question 1
What is the smallest deployable unit in Kubernetes?
NodePodServiceNamespace
Question 2
Why do we need a Service in front of pods?
Pods come and go with changing IPs; a Service gives a stable name and load-balances to themTo build Docker imagesTo store secretsTo schedule pods onto nodes
Question 3
A pod fails its readinessProbe. What happens?
The node is deletedThe container is restarted immediatelyIt stops receiving traffic from the Service until it becomes readyThe Deployment is deleted
Question 4
Which command rolls a Deployment back to the previous version?
kubectl delete deploy/courses-apikubectl rollout undo deploy/courses-apikubectl scale deploy/courses-api --replicas=0kubectl logs deploy/courses-api
Question 5
A pod status shows CrashLoopBackOff. What should you check first?
The DNS MX recordThe container's logs (kubectl logs) to see why the app keeps exitingThe Ingress TLS certificateThe HPA settings

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