CKAD Storage and Persistence

Question 1

What is a PersistentVolume (PV) in Kubernetes?

Accepted Answer

A cluster-level resource that abstracts physical storage provisioned by an admin or dynamically by a StorageClass

Answer

A volume defined inside a Pod spec that persists beyond pod restarts

Answer

A namespace-scoped resource that requests storage from the cluster

Answer

A Kubernetes object that automatically backs up pod data

Question 2

Which access mode allows a PersistentVolume to be mounted read-write by multiple nodes simultaneously?

Accepted Answer

ReadWriteMany (RWX)

Answer

ReadWriteOnce (RWO)

Answer

ReadOnlyMany (ROX)

Answer

ReadWriteOncePod (RWOP)

Question 3

What happens to a PersistentVolume when its bound PVC is deleted and the reclaim policy is 'Retain'?

Accepted Answer

The PV transitions to 'Released' status and retains its data until manually reclaimed

Answer

The PV is automatically deleted along with its data

Answer

The PV is made available for new PVCs immediately

Answer

The PV is automatically rebound to another pending PVC

Question 4

Which field in a PVC spec specifies which StorageClass should be used for provisioning?

Accepted Answer

storageClassName

Answer

provisioner

Answer

volumeName

Answer

accessModes

Question 5

What is the default reclaim policy for dynamically provisioned PersistentVolumes?

Accepted Answer

Delete

Answer

Retain

Answer

Recycle

Answer

Archive

Question 6

Which volume type mounts a file or directory from the host node's filesystem directly into a Pod?

Accepted Answer

hostPath

Answer

emptyDir

Answer

configMap

Answer

nfs

Question 7

Which kubectl command lists all PersistentVolumeClaims along with their status and capacity?

Accepted Answer

kubectl get pvc

Answer

kubectl describe pv

Answer

kubectl list pvc

Answer

kubectl status pvc