Which option is typically ephemeral storage for a pod?

Which option is typically ephemeral storage for a pod?

• A. emptyDir
• B. PersistentVolume
• C. PersistentVolumeClaim
• D. Ceph

Answer: (A)

Ephemeral storage for a pod is storage that exists only for the pod’s lifetime on a node. The emptyDir volume is created when the pod is assigned to a node and is removed when the pod terminates, making it ideal for scratch space and temporary inter-container data within the pod. It’s tied to the pod’s lifecycle and doesn’t persist across restarts or rescheduling. In contrast, a PersistentVolume provides storage that can outlive the pod, and a PersistentVolumeClaim is how a pod requests that persistent storage. Ceph is a storage system that can back PVs, but by itself it isn’t the ephemeral storage tied to a single pod’s lifecycle.

Ephemeral storage for a pod is storage that exists only for the pod’s lifetime on a node. The emptyDir volume is created when the pod is assigned to a node and is removed when the pod terminates, making it ideal for scratch space and temporary inter-container data within the pod. It’s tied to the pod’s lifecycle and doesn’t persist across restarts or rescheduling.

In contrast, a PersistentVolume provides storage that can outlive the pod, and a PersistentVolumeClaim is how a pod requests that persistent storage. Ceph is a storage system that can back PVs, but by itself it isn’t the ephemeral storage tied to a single pod’s lifecycle.