Certified Kubernetes Application Developer (CKAD) Practice Test

How do you associate a PersistentVolume with a Pod?

1. By defining it in the storage class settings

2. By specifying the PersistentVolume directly in the Pod definition

3. By defining the PersistentVolumeClaim in the volumes section of the Pod definition

4. By creating a link between the Pod and the Volume in the namespace

The correct answer is: By defining the PersistentVolumeClaim in the volumes section of the Pod definition

The correct approach to associate a PersistentVolume with a Pod is by defining the PersistentVolumeClaim (PVC) in the volumes section of the Pod definition. A PersistentVolumeClaim acts as a request for a specific amount of storage and specifies the attributes of the storage desired, and it serves as an interface between the Pods and the underlying storage resources (PersistentVolumes). When you define a PVC, it requests a certain size of storage and denotes specific characteristics such as access modes. Kubernetes then matches this claim with an appropriate PersistentVolume that meets the criteria specified in the claim. Once the claim is bound to a volume, you can then refer to this claim in the Pod specification. This creates a link where the Pod can use the storage provided by the PersistentVolume via the claim. This method ensures that the Pod has the necessary permissions and configurations to access the storage, abstracting the details of the underlying volume management away from the Pod itself. Associating a PersistentVolume through the storage class settings alone does not create this direct relationship between the volume and the Pod, and specifying the PersistentVolume directly in the Pod definition is not how Kubernetes is designed to manage storage requests. Creating a link between the Pod and the Volume in the namespace is vague and does not align with