11.) What is the default port for the Kubernetes API server?
12.) What happens if a service has no selectors defined?
13.) What is used to restrict network traffic between pods?
14.) Which of the following is NOT a valid service type in Kubernetes?
15.) How do you expose a deployment via a NodePort service?
16.) What plugin does Kubernetes use for DNS resolution?
17.) Which service type allows a DNS alias to redirect to an external name (like google.com)?
18.) How do you display all services in all namespaces?
19.) What flag would you use to assign a static port when exposing a service via NodePort?
20.) Which CNI plugin supports advanced networking features like network policies and IP pools?