CKA Workloads and Scheduling 3

Question 1

Which Kubernetes object automatically replaces a failed pod and maintains a specified number of replicas?

Accepted Answer

ReplicaSet

Answer

A ReplicaSet continuously monitors pod count and creates or deletes pods to maintain the desired number of replicas.

Question 2

You need pods of service A to prefer running on nodes that also run pods of service B. Which feature enables this?

Accepted Answer

Pod affinity

Answer

Pod affinity lets you express that a pod should be scheduled near other pods matching a label selector, using requiredDuringScheduling or preferredDuringScheduling rules.

Question 3

A StatefulSet with 3 replicas is being deleted. In what order are the pods terminated by default?

Accepted Answer

Reverse ordinal order 2, 1, 0

Answer

StatefulSets terminate pods in reverse ordinal order (highest index first) by default to maintain ordering guarantees.

Question 4

What does the maxUnavailable field in a RollingUpdate deployment strategy control?

Accepted Answer

Maximum number of pods that can be unavailable during the update

Answer

maxUnavailable defines how many pods can be unavailable (as a count or percentage) during a rolling update, controlling update speed vs. availability.

Question 5

Which scheduler feature allows you to manually assign a pod to a specific node without going through the scheduling algorithm?

Accepted Answer

nodeName

Answer

Setting spec.nodeName directly assigns a pod to a specific node, bypassing the scheduler entirely.

(CKA) Certified Kubernetes Administrator Practice Test

(CKA) Certified Kubernetes Administrator Practice Test

CKA Workloads and Scheduling 3