Which statement best describes the role of a Kubernetes Service in networking?

• A. ExternalName allows DNS mapping to external resources
• B. A stable endpoint is provided for a set of Pods behind the Service
• C. Ingress handles internal service discovery
• D. PersistentVolume claims expose pods as network endpoints

Answer: (B)

A Kubernetes Service provides a stable network endpoint for a set of Pods behind it. It assigns a fixed address (and a DNS name) that clients can use to reach the group of Pods, even as the individual Pods come and go. The service uses a label selector to identify which Pods belong to it and handles load balancing across healthy members, so requests are consistently routed without requiring clients to track Pod IPs. This decouples application clients from the lifecycle of pods and their ephemeral IPs, providing a reliable entry point into the app.

For context, Ingress is about exposing HTTP(S) traffic into the cluster with routing rules, ExternalName maps a service to an external DNS name, and PersistentVolumeClaims relate to storage rather than networking endpoints.