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CKA study material · question 998 of 1000

What must be verified before applying the out-of-service taint to a node?

  1. That the node has been cordoned
  2. That every Pod on it has a PodDisruptionBudget
  3. That its volumes use the Retain reclaim policy
  4. That the node is genuinely shut down, not mid-restart
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Answer: D. That the node is genuinely shut down, not mid-restart

The taint forces deletion and immediate volume detachment, so applying it to a node that is merely restarting risks two writers on one volume and data corruption.

Source: Node Shutdowns (Kubernetes) — Non-graceful node shutdown handling

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