Understand Application Deployments and How to Perform Rolling Update and Rollbacks CKA Practice Questions (Page 2)

Questions 6–10

1. 6foundation · easy

   What information does `kubectl rollout history deployment/app` display?

   • AA list of revisions with their revision numbers and change causes.
   • BThe current status of the rollout, including progress and completion.
   • CThe YAML manifest of the Deployment for each revision.
   • DThe logs of all pods in the Deployment.
   Reveal Solution Discussion Select an answer first
2. 7foundation · easy

   After changing the container image in a Deployment, what does the Deployment controller do?

   • AIt creates a new ReplicaSet and gradually scales it up while scaling down the old ReplicaSet.
   • BIt waits for manual approval before applying the new image.
   • CIt updates the existing pods in place with the new image.
   • DIt immediately deletes all old pods and creates new ones with the new image.
   Reveal Solution Discussion Select an answer first
4. 8expert · medium

   A Deployment 'db' has 4 replicas. The team sets maxSurge to 25% and maxUnavailable to 25%. During a rolling update, what is the maximum number of pods that can be unavailable at any given time?

   • A0 pods
   • B1 pod
   • C4 pods
   • D2 pods
   Reveal Solution Discussion Select an answer first
5. 9application · easy

   A Deployment 'api' was updated, and the rollout completed successfully. The team wants to see a summary of all revisions and their change causes. Which command should they run?

   • Akubectl rollout history deployment/api
   • Bkubectl describe deployment api
   • Ckubectl get deployment api -o yaml
   • Dkubectl rollout status deployment/api
   Reveal Solution Discussion Select an answer first
6. 10foundation · easy

   A team needs to run a stateless web application across multiple nodes with automatic self-healing if a pod fails. Which Kubernetes resource is designed specifically for this purpose?

   • AA Deployment, because it manages a set of identical stateless pods and ensures the desired number of replicas are running.
   • BA DaemonSet, because it runs one pod on every node to ensure the application is always available.
   • CA Job, because it runs a batch workload to completion and can be restarted if it fails.
   • DA StatefulSet, because it provides stable network identities and persistent storage for replicas.
   Reveal Solution Discussion Select an answer first