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CKA study material · question 826 of 1000

Which requirement applies to a container using Bidirectional mount propagation?

  1. It must set readOnly on the mount
  2. It must run in the host PID namespace
  3. It must declare a RuntimeClass
  4. It must be privileged
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Answer: D. It must be privileged

Bidirectional propagation pushes the container's mounts back out to the host, which can damage the host operating system, so it is permitted only in privileged containers.

Source: Volumes (Kubernetes) — Mount propagation

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