Google Cloud Associate Cloud Engineer — Question 289

You recently discovered an issue with your rolling update in Google Kubernetes Engine (GKE). You now need to roll back a rolling update. What should you do?

Answer options

• A. Delete the deployment.
• B. Use the kubectl rollout restart command to revert the deployment.
• C. Use the kubectl rollout undo command.
• D. Manually scale down the new Pods and scale up the old Pods.

Correct answer: C

Explanation

The correct option is C, as the kubectl rollout undo command is specifically designed to revert a deployment to its previous state. Option A, deleting the deployment, would result in the loss of all configurations and history. Option B restarts the deployment rather than rolling it back, and option D does not effectively manage the deployment history or ensure a proper rollback.