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CKA study material · question 40 of 1000

An RBAC rule sets apiGroups to an empty string. Which API group does that name?

  1. Every API group
  2. The core API group
  3. The rbac.authorization.k8s.io group
  4. No group, so the rule is ignored
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Answer: B. The core API group

An empty string designates the core API group in an RBAC rule.

Source: Authorization (Kubernetes) — Request attributes used in authorization

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