To achieve consistent DNS naming for StatefulSet pods, what resource should you use?

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Multiple Choice

To achieve consistent DNS naming for StatefulSet pods, what resource should you use?

Explanation:
Using a headless service. By setting a service to be headless (clusterIP: None), Kubernetes does not allocate a single cluster IP and instead creates DNS records for each backing pod. This yields stable, per-pod DNS names such as <statefulset-name>-<ordinal>.<service-name>.<namespace>.svc.cluster.local, allowing clients to address each StatefulSet pod directly by its fixed name. Other service types expose one IP or forward to an external name and do not provide per-pod DNS entries, so they aren’t suitable for achieving consistent DNS naming for StatefulSet pods.

Using a headless service. By setting a service to be headless (clusterIP: None), Kubernetes does not allocate a single cluster IP and instead creates DNS records for each backing pod. This yields stable, per-pod DNS names such as -...svc.cluster.local, allowing clients to address each StatefulSet pod directly by its fixed name. Other service types expose one IP or forward to an external name and do not provide per-pod DNS entries, so they aren’t suitable for achieving consistent DNS naming for StatefulSet pods.

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