Kubernetes Container Orchestration Pod Management 4

Question 1

What is the difference between `kubectl delete pod ` and `kubectl delete pod --force --grace-period=0`?

Accepted Answer

The second command bypasses the graceful termination period and forcefully removes the Pod

Answer

--force --grace-period=0 skips the SIGTERM grace period and immediately removes the Pod from the API server, useful for stuck Terminating Pods.

Question 2

Which field in a Pod spec allows you to share the host network namespace with the Pod's containers?

Accepted Answer

spec.hostNetwork: true

Answer

Setting spec.hostNetwork: true makes the Pod use the node's network namespace, giving containers direct access to the host network interfaces.

Question 3

What is a Pod Disruption Budget (PDB) used for?

Accepted Answer

Ensuring a minimum number of Pods remain available during voluntary disruptions

Answer

A PDB specifies minAvailable or maxUnavailable to protect application availability during planned disruptions like node drains or cluster upgrades.

Question 4

Which probe type checks if a container is ready to accept traffic?

Accepted Answer

Readiness probe

Answer

The readiness probe determines if a container is ready to receive traffic; a failing readiness probe removes the Pod from Service endpoints without restarting it.

Question 5

A Pod has `restartPolicy: OnFailure`. Under which condition will Kubernetes NOT restart a container?

Accepted Answer

When the container exits with exit code 0 (success)

Answer

OnFailure only restarts containers that exit with a non-zero exit code; a successful exit (code 0) is treated as completion and not restarted.

Kubernetes Container Orchestration Practice Test

Kubernetes Container Orchestration Practice Test

Kubernetes Container Orchestration Pod Management 4