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CKA study material · question 801 of 1000

A PersistentVolume is bound ReadWriteOnce. Three Pods of the same Deployment land on the same node and all mount the claim. What happens?

  1. Only the first Pod mounts it; the others stay Pending
  2. All three mount it, because they are on one node
  3. The kubelet rejects the second and third mounts
  4. The volume is remounted read-only for the second and third
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Answer: B. All three mount it, because they are on one node

ReadWriteOnce binds a volume read-write to a single node, and several Pods on that node may share it. ReadWriteOncePod is the mode that restricts access to one Pod.

Source: Persistent Volumes (Kubernetes) — Access Modes

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