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CKA study material · question 571 of 1000

A kubelet refuses to start on a node that has swap enabled. Which setting allows it to start anyway?

  1. swapBehavior set to LimitedSwap
  2. failSwapOn set to false
  3. evictionHard with a memory.available threshold
  4. kubeReserved including a memory value
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Answer: B. failSwapOn set to false

failSwapOn: false lets the kubelet tolerate swap. Workloads still get no swap access until swapBehavior is changed from its NoSwap default, so the two settings answer different questions.

Source: Installing kubeadm (Kubernetes) — Swap configuration

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