What is the primary characteristic of ephemeral storage in Kubernetes?

What is the primary characteristic of ephemeral storage in Kubernetes?

• A. It does not survive across restarts
• B. It persists after restarts
• C. It is stored on cloud storage by default
• D. It is encrypted at rest by default

Answer: (A)

Ephemeral storage is local to the node and tied to the pod’s lifecycle. It serves as scratch space for temporary data, logs, and caches, and there is no guarantee of durability if the pod restarts or is rescheduled to another node. In practice, when the pod is deleted or moves to a different node, the data in ephemeral storage is lost, which is why its defining trait is that it does not survive across restarts. Choices suggesting persistence after restarts, cloud storage by default, or encryption by default don’t describe ephemeral storage’s behavior. Ephemeral storage is meant for temporary, non-durable data that should not be relied upon after the pod’s lifetime.

Ephemeral storage is local to the node and tied to the pod’s lifecycle. It serves as scratch space for temporary data, logs, and caches, and there is no guarantee of durability if the pod restarts or is rescheduled to another node. In practice, when the pod is deleted or moves to a different node, the data in ephemeral storage is lost, which is why its defining trait is that it does not survive across restarts.

Choices suggesting persistence after restarts, cloud storage by default, or encryption by default don’t describe ephemeral storage’s behavior. Ephemeral storage is meant for temporary, non-durable data that should not be relied upon after the pod’s lifetime.