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CKA study material · question 560 of 1000

A control plane component exits with an error on a freshly provisioned host that has no default route configured. What is the likely cause?

  1. kubeadm could not determine an address to advertise
  2. The CRI socket could not be detected
  3. The SystemVerification preflight check failed
  4. Swap was enabled on the host
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Answer: A. kubeadm could not determine an address to advertise

Kubernetes components pick their advertise address from the interface associated with the default gateway; without a default route and without an explicit address, a component may exit with an error.

Source: Creating a cluster with kubeadm (Kubernetes) — Instructions › Network setup

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