CKA Workloads and Scheduling

Question 1

Which Kubernetes object is used to ensure that a specific number of replicas of a Pod are running at any time?

Accepted Answer

ReplicaSet

Answer

Deployment

Answer

StatefulSet

Answer

DaemonSet

Question 2

How do you prevent a Pod from being scheduled on specific nodes?

Accepted Answer

By tainting the nodes and adding tolerations to the Pod.

Answer

By using node selectors in the Pod specification.

Answer

By defining affinity rules in the Pod specification.

Answer

By scaling down the node pool.

Question 3

What happens when you scale a Deployment to zero replicas?

Accepted Answer

All Pods managed by the Deployment are terminated.

Answer

The Pods remain running but are not restarted if they fail.

Answer

The Deployment is deleted.

Answer

The ReplicaSet is deleted.

Question 4

Which type of workload should you use for a Pod that must run on every node in a Kubernetes cluster?

Accepted Answer

DaemonSet

Answer

Deployment

Answer

StatefulSet

Answer

ReplicaSet

Question 5

How can you ensure that a Pod is scheduled on a node with specific hardware requirements (e.g., GPUs)?

Accepted Answer

Add a node selector to the Pod specification.

Answer

Use a ConfigMap to define node hardware.

Answer

Use a toleration and taint.

Answer

Add resource limits to the Pod specification.