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CKA study material · question 753 of 1000

A node's interfaces carry several addresses, but Kubernetes only ever uses one of them. Which does it consider?

  1. Every address the kernel reports on the interface
  2. The first address in the default route's subnet
  3. Whatever kube-proxy discovers at start-up
  4. The addresses recorded in node.status.addresses
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Answer: D. The addresses recorded in node.status.addresses

Only the addresses in node.status.addresses and pod.status.ips count toward the network model; others an interface happens to carry are ignored when deciding the cluster's IP families.

Source: Cluster Networking (Kubernetes) — Cluster networking types

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