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CKA study material · question 74 of 1000

Why should application state still be backed up before a kubeadm upgrade?

  1. Because kubeadm upgrade touches only Kubernetes' own components, not workloads
  2. Because kubeadm upgrade deletes all PersistentVolumes
  3. Because Pods are recreated in a new namespace
  4. Because etcd is wiped during the upgrade
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Answer: A. Because kubeadm upgrade touches only Kubernetes' own components, not workloads

kubeadm upgrade leaves workloads alone, so application-level state needs its own backup.

Source: Upgrading kubeadm clusters (Kubernetes) — Before you begin

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