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CKA study material · question 16 of 1000

Which addon does the documentation treat as effectively mandatory in every cluster?

  1. Cluster DNS
  2. Cluster-level logging
  3. The web dashboard
  4. Container resource monitoring
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Answer: A. Cluster DNS

Containers automatically search cluster DNS and most examples assume it, so all clusters should have it.

Source: Cluster Architecture (Kubernetes) — Addons › DNS

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