KCNA Storage & Persistent Volumes 3

Question 1

In a Pod spec, which field under a container references a named volume defined in spec.volumes?

Accepted Answer

volumeMounts[].name

Answer

The volumeMounts[].name field in a container spec must match the name of a volume defined in spec.volumes to mount it.

Question 2

Which CSI operation is responsible for attaching a volume to a node before it is mounted to a Pod?

Accepted Answer

ControllerPublishVolume

Answer

ControllerPublishVolume is the CSI call that attaches a volume to a node, which must happen before NodeStageVolume or NodePublishVolume mount it.

Question 3

What does a VolumeSnapshot object represent in Kubernetes?

Accepted Answer

A point-in-time snapshot of a PersistentVolume's data

Answer

A VolumeSnapshot represents a point-in-time snapshot of a PersistentVolume, enabling data backup and restore workflows.

Question 4

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

Accepted Answer

ReadOnlyMany

Answer

ReadOnlyMany (ROX) allows a volume to be mounted read-only by multiple nodes at the same time.

Question 5

A developer needs a temporary directory shared between two containers in the same Pod that disappears when the Pod exits. Which volume type fits best?

Accepted Answer

emptyDir

Answer

emptyDir volumes are created when a Pod starts and deleted when it terminates, making them ideal for temporary inter-container sharing.

(KCNA) Kubernetes and Cloud Native Associate Practice Test

(KCNA) Kubernetes and Cloud Native Associate Practice Test

KCNA Storage & Persistent Volumes 3