Debugging in Kubernetes CKAD Practice Questions (Page 2)

Questions 6–10

1. 6foundation · easy

   You need to see the logs of a pod to diagnose an application error. Which command would you use?

   • Akubectl get events
   • Bkubectl logs <pod-name>
   • Ckubectl top pod <pod-name>
   • Dkubectl describe pod <pod-name>
   Reveal Solution Discussion Select an answer first
2. 7foundation · easy

   You see a pod that is in the ImagePullBackOff state. Which command would you use to quickly see the status of all pods in the namespace to identify this pod?

   • Akubectl logs <pod-name>
   • Bkubectl get pods
   • Ckubectl get events
   • Dkubectl describe nodes
   Reveal Solution Discussion Select an answer first
4. 8foundation · easy

   You need to access a web application running in a pod on port 8080 from your local machine, but the pod does not have a Service. Which command allows you to temporarily forward a local port to the pod's port?

   • Akubectl cp <pod-name>:/app ./app
   • Bkubectl port-forward <pod-name> 8080:8080
   • Ckubectl expose pod <pod-name> --port=8080
   • Dkubectl exec -it <pod-name> -- curl localhost:8080
   Reveal Solution Discussion Select an answer first
5. 9application · medium

   You need to debug a database pod named db-0 that is not accessible from your local machine. The database listens on port 5432 inside the pod. You want to connect using a local GUI tool that expects to connect to localhost:5432. Which command should you run?

   • Akubectl logs db-0 --tail=50
   • Bkubectl port-forward db-0 5432:5432
   • Ckubectl exec -it db-0 -- psql -h localhost
   • Dkubectl cp db-0:/var/lib/postgresql/data ./data
   Reveal Solution Discussion Select an answer first
6. 10application · medium

   You are developing a web application that runs in a pod named app-5f7c8d9e2. The application listens on port 8080 inside the pod, but it is not exposed via a Service. You need to test the application from your local machine using curl. Which command enables this?

   • Akubectl port-forward app-5f7c8d9e2 8080:8080
   • Bkubectl get pod app-5f7c8d9e2 -o yaml
   • Ckubectl exec -it app-5f7c8d9e2 -- curl localhost:8080
   • Dkubectl logs app-5f7c8d9e2 --follow
   Reveal Solution Discussion Select an answer first