Certified Kubernetes Application Developer (CKAD) Practice Test 2026 - Free CKAD Practice Questions and Comprehensive Study Guide

A DaemonSet is the correct choice for ensuring that a Pod is running on all nodes in a Kubernetes cluster. When you create a DaemonSet, Kubernetes automatically schedules a copy of the specified Pod on all currently available nodes, and it continues to do so for any new nodes that are added to the cluster. This is particularly useful for applications that need to run on every node, such as log collectors and monitoring agents.

On the other hand, a ReplicaSet is designed to maintain a specified number of replicas (or instances) of a Pod across the cluster, but it does not guarantee that a Pod will run on every node. Instead, it focuses on providing high availability by ensuring a certain number of Pods are running, regardless of which nodes they are on.

A Deployment is built on top of a ReplicaSet and provides additional management options like rolling updates and rollbacks. While it also manages the number of Pods, it does not ensure that Pods run on every node in the cluster.

A Job is used to run a finite task or batch process that completes execution, and it is not intended for ensuring Pods are always running on all nodes. Instead, it runs until the specified work is done, which is different in purpose from the continuous running of