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CKA study material · question 336 of 1000

A downward API volume mounted through subPath stops reflecting a changed field value. Why?

  1. The field must be immutable to be projected
  2. subPath volumes are read-only
  3. A downward API volume mounted as subPath does not receive updates
  4. The kubelet caches downward API values for an hour
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Answer: C. A downward API volume mounted as subPath does not receive updates

A container using the downward API as a subPath mount does not receive updates when the field changes.

Source: Volumes (Kubernetes) — downwardAPI

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