CKAD Pod Design and Deployments 2

Question 1

Which annotation is required on a Deployment to enable revision history tracking for rollbacks?

Accepted Answer

kubernetes.io/change-cause

Answer

kubernetes.io/rollback-cause

Answer

deployment.kubernetes.io/revision

Answer

kubectl.kubernetes.io/last-applied

Question 2

A Deployment has 'revisionHistoryLimit: 3'. What does this mean?

Accepted Answer

Only the last 3 ReplicaSets are kept for rollback

Answer

Only 3 pods can be updated at a time

Answer

Rollouts pause after 3 revisions

Answer

Only 3 concurrent rollouts are allowed

Question 3

What happens to a Deployment when you run 'kubectl rollout pause deployment/myapp'?

Accepted Answer

The rollout is paused and no further changes are propagated

Answer

All pods are terminated

Answer

The deployment is deleted

Answer

Existing pods are restarted

Question 4

Which field in a Pod spec defines the node selection using key-value pairs that must exactly match node labels?

Accepted Answer

nodeSelector

Answer

affinity

Answer

tolerations

Answer

nodeName

Question 5

What is the effect of setting 'minReadySeconds: 30' in a Deployment?

Accepted Answer

Pods must be ready for 30 seconds before the rollout proceeds

Answer

Rollout waits 30 seconds before starting

Answer

Pods have 30 seconds to become healthy or are killed

Answer

The deployment waits 30 seconds between waves

Question 6

How do you scale a Deployment named 'frontend' to 5 replicas using an imperative command?

Accepted Answer

kubectl scale deployment/frontend --replicas=5

Answer

kubectl set replicas deployment/frontend 5

Answer

kubectl resize deployment/frontend 5

Answer

kubectl update deployment/frontend --replicas=5