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CKA study material · question 75 of 1000

Before upgrading a kubelet across a minor version, what must be done to the node?

  1. It must be deleted from the API server
  2. It must be drained
  3. Its certificates must be renewed
  4. Its container runtime must be reinstalled
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Answer: B. It must be drained

A minor-version kubelet upgrade requires draining the node first, control-plane nodes included.

Source: Upgrading kubeadm clusters (Kubernetes) — Additional information

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