CKA Workloads and Scheduling 2

Question 1

A DaemonSet is configured without a nodeSelector. On which nodes will it schedule pods?

Accepted Answer

All nodes in the cluster including control plane

Answer

By default, DaemonSets schedule one pod on every node in the cluster, including control-plane nodes, unless tolerations or nodeSelectors restrict placement.

Question 2

Which field in a Pod spec defines the minimum and maximum CPU/memory resources a container may use?

Accepted Answer

resources.requests and resources.limits

Answer

Both resources.requests (scheduler uses this) and resources.limits (enforced at runtime) must be specified together to fully define container resource bounds.

Question 3

You set a Deployment's strategy type to Recreate. What happens during an update?

Accepted Answer

Old pods are terminated before new pods are created

Answer

With Recreate strategy, Kubernetes terminates all existing pods before creating new ones, causing a brief downtime.

Question 4

What does the CronJob field .spec.startingDeadlineSeconds control?

Accepted Answer

How many seconds after the scheduled time a job may still start

Answer

startingDeadlineSeconds sets the deadline in seconds for starting a job if it misses its scheduled time; missed jobs within this window will still be attempted.

Question 5

Which kubectl command shows the rollout history of a Deployment named 'api'?

Accepted Answer

kubectl rollout history deployment/api

Answer

kubectl rollout history deployment/api lists the revision history for the Deployment, including change causes if annotated.

(CKA) Certified Kubernetes Administrator Practice Test

(CKA) Certified Kubernetes Administrator Practice Test

CKA Workloads and Scheduling 2