KCNA Storage & Persistent Volumes 4

Question 1

Which PersistentVolume reclaim policy automatically deletes the volume and its data when the PVC is deleted?

Accepted Answer

Delete

Answer

The Delete reclaim policy causes Kubernetes to delete both the PV object and the underlying storage asset when the bound PVC is deleted.

Question 2

What does the ReadWriteOncePod (RWOP) access mode enforce that ReadWriteOnce does not?

Accepted Answer

Volume can only be mounted by a single Pod across the entire cluster

Answer

RWOP restricts the volume to a single Pod cluster-wide, whereas RWO only restricts to a single node (multiple Pods on the same node could still mount it).

Question 3

A StatefulSet is deployed with 3 replicas and a volumeClaimTemplate. How many PVCs will be created?

Accepted Answer

3 PVCs, one per replica

Answer

StatefulSets create one PVC per replica from the volumeClaimTemplate, giving each Pod its own dedicated persistent storage.

Question 4

Which field in a Pod spec allows you to specify the name of a PVC to mount as a volume?

Accepted Answer

spec.volumes[].persistentVolumeClaim.claimName

Answer

The spec.volumes[].persistentVolumeClaim.claimName field references a PVC by name, making it available as a volume in the Pod.

Question 5

What status will a PVC show if no PersistentVolume matches its requirements and no dynamic provisioner is configured?

Accepted Answer

Pending

Answer

A PVC that cannot be bound to a matching PV stays in Pending status until a suitable volume becomes available.

(KCNA) Kubernetes and Cloud Native Associate Practice Test

(KCNA) Kubernetes and Cloud Native Associate Practice Test

KCNA Storage & Persistent Volumes 4