What is the primary benefit of using a rolling update strategy for a Deployment?

It ensures zero downtime by updating all pods simultaneously.

It updates pods incrementally, keeping the application available throughout the process.

It reduces the number of pods to minimize resource usage during the update.

It automatically rolls back if any pod fails during the update.

A Deployment 'payments' has undergone several updates. The current revision is 5. The team needs to roll back to revision 3, but they are unsure if revision 3 is still available. Which command should they run first to verify that revision 3 exists?

kubectl get replicasets -l app=payments

kubectl rollout undo deployment/payments --to-revision=3

kubectl rollout history deployment/payments

kubectl describe deployment payments

Which command rolls back a Deployment named 'app' to the previous revision?

kubectl rollout undo deployment/app

kubectl deployment rollback app

kubectl rollout revert deployment/app

A Deployment named 'api' currently has 5 replicas. Which command scales it down to 2 replicas?

kubectl set replicas deployment api --replicas=2

kubectl patch deployment api --replicas=2

kubectl scale deployment api --replicas=2

kubectl update deployment api --replicas=2

Certified Kubernetes Administrator (CKA)

Domain 3Objective 1

Understand Application Deployments and How to Perform Rolling Update and Rollbacks CKA Practice Questions (Page 3)

Part of the Workloads and Scheduling domain, which accounts for 15% of the CKA exam. Linux Foundation does not publish an official question count, but from its 120-minute exam (~50–80 total, ~8–12 in this domain), expect 2–2 from this objective — we provide 22 practice questions to prepare you well beyond it. (estimate)

22questions here

5free pages

8concepts

15%of the exam

Questions 11–15

11foundation · easy
What is the primary benefit of using a rolling update strategy for a Deployment?
Select an answer first
12expert · medium
A Deployment 'worker' has 10 replicas. The team sets maxSurge to 30% and maxUnavailable to 30%. During a rolling update, what is the maximum number of pods that can be created above the desired count?
Select an answer first
13expert · medium
A Deployment 'payments' has undergone several updates. The current revision is 5. The team needs to roll back to revision 3, but they are unsure if revision 3 is still available. Which command should they run first to verify that revision 3 exists?
Select an answer first
14foundation · easy
Which command rolls back a Deployment named 'app' to the previous revision?
Select an answer first
15foundation · easy
A Deployment named 'api' currently has 5 replicas. Which command scales it down to 2 replicas?
Select an answer first

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