KCNA Storage Solutions 2

Question 1

Which Kubernetes object defines how a storage volume can be accessed across multiple pods?

Accepted Answer

PersistentVolume

Answer

A PersistentVolume (PV) defines the storage resource itself, including its access modes such as ReadWriteOnce, ReadOnlyMany, or ReadWriteMany.

Question 2

What happens to a PersistentVolume with a Reclaim Policy of 'Delete' when its PVC is removed?

Accepted Answer

The underlying storage asset is deleted along with the PV

Answer

The 'Delete' reclaim policy causes both the PV object and the associated external storage asset to be removed when the PVC is deleted.

Question 3

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

Accepted Answer

ReadWriteMany (RWX)

Answer

ReadWriteMany (RWX) permits multiple nodes to mount the volume with read-write access at the same time, which is required for shared storage scenarios.

Question 4

In the CSI specification, which component runs on every node and handles volume mount/unmount operations?

Accepted Answer

CSI Node Plugin

Answer

The CSI Node Plugin runs as a DaemonSet on every node and is responsible for local operations such as mounting and unmounting volumes.

Question 5

A developer wants storage that is automatically provisioned when a PVC is created. Which Kubernetes feature enables this?

Accepted Answer

Dynamic Provisioning via StorageClass

Answer

Dynamic provisioning uses a StorageClass with a provisioner to automatically create PersistentVolumes on demand when a PVC is submitted.

(KCNA) Kubernetes and Cloud Native Associate Practice Test

(KCNA) Kubernetes and Cloud Native Associate Practice Test

KCNA Storage Solutions 2