CKA CKA Services and Ingress

Question 1

Which Service type exposes a service only within the Kubernetes cluster on an internal IP?

Accepted Answer

ClusterIP

Answer

NodePort

Answer

LoadBalancer

Answer

ExternalName

Question 2

Which Service type exposes an application on a static port on every node's IP?

Accepted Answer

NodePort

Answer

ClusterIP

Answer

LoadBalancer

Answer

Headless

Question 3

What is the default port range for NodePort services in Kubernetes?

Accepted Answer

30000–32767

Answer

1024–65535

Answer

8080–9090

Answer

20000–30000

Question 4

Which Service type automatically provisions an external cloud load balancer?

Accepted Answer

LoadBalancer

Answer

NodePort

Answer

Ingress

Answer

ClusterIP

Question 5

What does setting `clusterIP: None` on a Service create?

Accepted Answer

A Headless Service for direct pod DNS discovery

Answer

An external service with no cluster IP

Answer

A service that rejects all traffic

Answer

An ExternalName alias

Question 6

Which Service type creates a DNS CNAME alias pointing to an external hostname?

Accepted Answer

ExternalName

Answer

External

Answer

ClusterIP with externalIPs

Answer

NodePort