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CKA study material · question 287 of 1000

Where does the default Corefile send queries that fall outside the cluster zones?

  1. To the API server
  2. To the node's kubelet
  3. Nowhere; they are refused
  4. To /etc/resolv.conf, via the forward plugin
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Answer: D. To /etc/resolv.conf, via the forward plugin

The default Corefile forwards everything outside its zones to the resolvers in /etc/resolv.conf.

Source: Customizing DNS Service (Kubernetes) — CoreDNS ConfigMap options

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