Kubernetes Container Orchestration Kubernetes 3

Question 1

What is the default restart policy for a Kubernetes Pod?

Accepted Answer

Always

Answer

The default restartPolicy for a Pod is 'Always', which means the container will always be restarted regardless of exit code.

Question 2

How does a Kubernetes HorizontalPodAutoscaler (HPA) determine when to scale?

Accepted Answer

By observing Pod metrics such as CPU or memory utilization

Answer

HPA scales the number of Pod replicas based on observed metrics like CPU or custom metrics compared to target thresholds.

Question 3

Which resource type ensures exactly one Pod runs on every (or selected) node in a cluster?

Accepted Answer

DaemonSet

Answer

A DaemonSet ensures that a copy of a Pod runs on all (or some) nodes, commonly used for logging agents or monitoring daemons.

Question 4

What does a Kubernetes NetworkPolicy do?

Accepted Answer

Controls which Pods can communicate with each other and with external endpoints

Answer

NetworkPolicy is a specification of how groups of Pods are allowed to communicate with each other and other network endpoints.

Question 5

Which kubectl command applies a configuration file to create or update resources?

Accepted Answer

kubectl apply -f

Answer

kubectl apply -f performs a declarative update — it creates resources if they don't exist and patches them if they do.

Kubernetes Container Orchestration Practice Test