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World K8: Career Quest

Interview questions

You will learn: calm, clear answers to three classic DevOps interview questions.

Checked with Kubernetes 1.37 on 31 Oct 2026

The problem

Interview day at the food court. The tech lead asks: “Container or VM: what is the difference?” Your mind goes blank. Pick your answer.

Check

One more line makes the answer shine. Judge each one.

Swipe right for good, left for needs work. Or use the buttons.

1 / 5

"A VM is a whole house. A container is one room."

Try it

Question two: “Design a pipeline: A conveyor belt with stations: build, test, ship. It runs by itself. for your app.” Start with the stations. Put them in order.

First station at the top. Put these in order. Use the arrows, or drag.

  • Scan: look for known holes
  • Push: send the image to the registry
  • Lint: check the style
  • Test: run the tests
  • Build: pack the image
  • Deploy: GitOps updates the cluster

Predict

Follow-up: “A test fails. What does your pipeline do next?”

Watch

Tap each point on the timeline.

Question three: “Tell me about a bug you fixed.” Use the STAR method: Tell a work story in four parts: Situation, Task, Action, Result.: Situation, Task, Action, Result.

Check

Judge each line from a debugging story.

Swipe right for good, left for needs work. Or use the buttons.

1 / 5

"I checked the logs, then the events."

Check

Last question: “Have you used Istio?” You have not. What do you say?

You did it!

You can now answer three classic DevOps interview questions.

Go deeper (optional)

More classics: “What happens when a pod crashes?” (K1, K2). “Service or Gateway?” (K3). “How do you keep secrets out of images?” (D5). “What is GitOps?” (K7). Practise each answer out loud, in two minutes. At the end, ask them a question too.