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CKA study material · question 272 of 1000

A Pod sets hostname foo and subdomain bar in namespace my-namespace. What is its FQDN?

  1. foo.my-namespace.svc.cluster.local
  2. foo.bar.my-namespace.svc.cluster.local
  3. bar.foo.my-namespace.svc.cluster.local
  4. foo.bar.pod.cluster.local
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Answer: B. foo.bar.my-namespace.svc.cluster.local

The FQDN is <hostname>.<subdomain>.<namespace>.svc.cluster.local when both fields are set.

Source: DNS for Services and Pods (Kubernetes) — Pod's hostname and subdomain fields

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