Viewing Pod details and logs in Kubernetes - Practice Problems & Coding Challenges

Challenge - 5 Problems

💻 Command Output

intermediate

Viewing logs of a specific container in a multi-container Pod

You have a Pod named webapp-pod with two containers: frontend and backend. Which command shows logs only from the backend container?

A kubectl logs webapp-pod backend

B kubectl logs webapp-pod --container=frontend

C kubectl get logs webapp-pod -c backend

D kubectl logs webapp-pod -c backend

💡 Hint

Use the -c or --container flag to specify the container name.

The kubectl logs command with -c backend fetches logs from the backend container only. Option D fetches frontend logs, A is invalid syntax, and D uses a wrong command.

🧠 Conceptual

intermediate

Understanding Pod description details

Which section in the output of kubectl describe pod mypod shows the current status of each container inside the Pod?

A Status section

B Containers section

C Conditions section

D Events section

💡 Hint

Look for container names and their state like Running or Waiting.

The Containers section lists each container's current state, restart count, and readiness. Events show recent actions, Conditions show Pod-level health, and Status is a summary.

❓ Troubleshoot

advanced

Diagnosing missing logs from a Pod

You run kubectl logs mypod but get the error: Error from server (BadRequest): container "mypod" in pod "mypod" is not available. What is the most likely cause?

A The Pod has multiple containers and you did not specify which container's logs to show

B The Pod is not running and logs are unavailable

C The Pod name is misspelled

D kubectl logs command requires --all-containers flag

💡 Hint

Think about how logs are fetched when multiple containers exist.

When a Pod has multiple containers, you must specify the container name with -c. Otherwise, kubectl tries to find a container named same as the Pod, which fails.

🔀 Workflow

advanced

Steps to view real-time logs of a Pod

What is the correct sequence of commands to view real-time logs of a Pod named api-server?

A 1,3,4,2

B 1,4,2,3

C 1,4,3,2

D 4,1,2,3

💡 Hint

First confirm Pod exists, then check details, then stream logs.

You first list pods (1), then get details of the specific Pod (3), then stream logs with -f (2). Option 4 is redundant but acceptable after 1 to confirm Pod name.

✅ Best Practice

expert

Efficiently viewing logs from all containers in a Pod

You want to view logs from all containers in a Pod named db-pod simultaneously. Which command achieves this?

A kubectl logs db-pod --all-containers=true

B kubectl logs db-pod -c all

C kubectl logs db-pod --container=all

D kubectl logs db-pod

💡 Hint

Look for a flag that includes logs from every container.

The --all-containers=true flag fetches logs from all containers in the Pod. Options B and C use invalid container names, and D only shows logs from the first container by default.