CKA CKA Storage and Volumes 2

Question 1

What Kubernetes object enables dynamic provisioning of PersistentVolumes?

Accepted Answer

StorageClass

Answer

A StorageClass defines the provisioner and parameters used to dynamically create PersistentVolumes on demand when a PVC is submitted.

Question 2

Which field in a StorageClass manifest defines the volume provisioner plugin to use?

Accepted Answer

provisioner

Answer

The `provisioner` field identifies the plugin (e.g., `kubernetes.io/aws-ebs` or `ebs.csi.aws.com`) responsible for creating volumes.

Question 3

What does setting `volumeBindingMode: WaitForFirstConsumer` on a StorageClass do?

Accepted Answer

Delays volume binding until a Pod using the PVC is scheduled

Answer

WaitForFirstConsumer defers PV creation and binding until a Pod that references the PVC is scheduled, enabling topology-aware provisioning.

Question 4

How do you mark a StorageClass as the default class in a cluster?

Accepted Answer

Add the annotation storageclass.kubernetes.io/is-default-class: 'true'

Answer

Adding the annotation `storageclass.kubernetes.io/is-default-class: 'true'` designates a StorageClass as the cluster default for PVCs that don't specify a class.

Question 5

Which reclaim policy in a StorageClass automatically deletes the underlying storage when a PVC is deleted?

Accepted Answer

Delete

Answer

The Delete reclaim policy causes the associated storage asset (e.g., an EBS volume) to be deleted when its PVC is removed.

(CKA) Certified Kubernetes Associate Practice Test

(CKA) Certified Kubernetes Associate Practice Test

CKA CKA Storage and Volumes 2