Kubernetes Container Orchestration Pod Management 2

Question 1

What happens to a Pod when its node is drained using `kubectl drain`?

Accepted Answer

The Pod is evicted and rescheduled on another node if managed by a controller

Answer

kubectl drain evicts Pods from the node; Pods managed by controllers like Deployments are rescheduled elsewhere, while standalone Pods are deleted.

Question 2

Which field in a Pod spec controls how many times Kubernetes restarts a failed container before giving up?

Accepted Answer

spec.restartPolicy

Answer

spec.restartPolicy (Always, OnFailure, Never) controls container restart behavior; the kubelet applies exponential backoff between restarts.

Question 3

A Pod is in the `Terminating` state for a long time. What is the most likely cause?

Accepted Answer

A finalizer is blocking deletion or the container is ignoring SIGTERM

Answer

A stuck Terminating state is typically caused by a finalizer that has not been removed or a container that does not handle SIGTERM within the grace period.

Question 4

What is the purpose of `spec.terminationGracePeriodSeconds` in a Pod spec?

Accepted Answer

Defines how long Kubernetes waits after sending SIGTERM before sending SIGKILL

Answer

terminationGracePeriodSeconds gives a container time to shut down gracefully after receiving SIGTERM before Kubernetes forcefully kills it with SIGKILL.

Question 5

Which command shows the logs of a previously terminated container in a Pod?

Accepted Answer

kubectl logs <pod> --previous

Answer

The --previous flag retrieves logs from the last terminated instance of a container, useful for debugging crash loops.

Kubernetes Container Orchestration Practice Test

Kubernetes Container Orchestration Practice Test

Kubernetes Container Orchestration Pod Management 2