Which description best defines Ephemeral Storage for a Pod in Kubernetes?

Which description best defines Ephemeral Storage for a Pod in Kubernetes?

• A. Temporary storage that persists after the Pod termination
• B. Temporary storage tied to a Pod and deleted when the Pod is removed
• C. Persistent storage provisioned via a StorageClass
• D. A dedicated disk on the node that remains across Pod restarts

Answer: (B)

Ephemeral storage is storage that only exists for the lifetime of a Pod. It’s created with the Pod and is cleaned up when the Pod is removed, so the data does not survive the Pod’s termination. In practice this is often realized with an emptyDir volume on the node, living on the node’s filesystem and tied to that Pod instance. This is different from persistent storage, which is provided via PersistentVolumes and StorageClasses and is meant to survive Pod restarts, reschedules, or node failures. It’s also different from dedicated node disks, which are node-scoped and can persist beyond a single Pod’s lifecycle. So the description that best matches ephemeral storage is: temporary storage tied to a Pod and deleted when the Pod is removed.

Ephemeral storage is storage that only exists for the lifetime of a Pod. It’s created with the Pod and is cleaned up when the Pod is removed, so the data does not survive the Pod’s termination. In practice this is often realized with an emptyDir volume on the node, living on the node’s filesystem and tied to that Pod instance.

This is different from persistent storage, which is provided via PersistentVolumes and StorageClasses and is meant to survive Pod restarts, reschedules, or node failures. It’s also different from dedicated node disks, which are node-scoped and can persist beyond a single Pod’s lifecycle.

So the description that best matches ephemeral storage is: temporary storage tied to a Pod and deleted when the Pod is removed.