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CKA study material · question 53 of 1000

How do Kubernetes components choose the address they advertise on a multi-homed host?

  1. From the lowest-numbered interface
  2. From the interface carrying the default gateway
  3. From a random reachable interface
  4. From the interface named in the kubelet's hostname
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Answer: B. From the interface carrying the default gateway

Components pick the address on the default-gateway interface, so a host with no default route may exit with an error.

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

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