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CKA study material · question 783 of 1000

After editing the CoreDNS ConfigMap, an operator wonders whether to restart the CoreDNS Deployment. What does the default configuration provide?

  1. The reload plugin, which picks up the changed Corefile automatically
  2. Nothing; a restart is always required
  3. A watch on the ConfigMap held by the kubelet
  4. An annotation that triggers a rollout when the ConfigMap changes
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Answer: A. The reload plugin, which picks up the changed Corefile automatically

The reload plugin is part of the default Corefile and applies configuration changes without a restart.

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

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