CKA Service Mesh Basics

Question 1

What is a Kubernetes Service?

Accepted Answer

An abstraction providing stable networking for a set of Pods

Answer

A running container

Answer

A storage volume

Answer

A cluster node

Question 2

What is the difference between ClusterIP and NodePort services?

Accepted Answer

ClusterIP is internal only; NodePort exposes the service on each node's IP

Answer

They are the same

Answer

NodePort is internal only

Answer

ClusterIP uses external load balancers

Question 3

What is an Ingress in Kubernetes?

Accepted Answer

An API object that manages external access to services, typically HTTP

Answer

A type of Pod

Answer

A storage solution

Answer

A monitoring tool

Question 4

What is DNS resolution used for in Kubernetes?

Accepted Answer

To resolve Service names to IP addresses within the cluster

Answer

To register domain names

Answer

To encrypt traffic

Answer

To monitor services

Question 5

What is a LoadBalancer service type?

Accepted Answer

A service that provisions an external load balancer in cloud environments

Answer

A service running on a single Pod

Answer

An internal-only service

Answer

A monitoring service

Question 6

What port does Kubernetes API server listen on by default?

Accepted Answer

6443

Answer

8080

Answer

443

Answer

80