KCNA Kubernetes Architecture & Components 3

Question 1

Which resource type allows a Kubernetes administrator to define a template for creating multiple identical Pods across nodes?

Accepted Answer

DaemonSet

Answer

A DaemonSet ensures that one copy of a Pod runs on all (or selected) nodes, making it ideal for node-level agents like log collectors.

Question 2

What is the purpose of a Kubernetes Namespace?

Accepted Answer

To provide a virtual cluster within a physical cluster for resource and scope isolation

Answer

Namespaces provide a scope for names and allow logical partitioning of cluster resources between multiple users or teams.

Question 3

Which field in a Pod spec determines how kubelet handles a container that crashes?

Accepted Answer

restartPolicy

Answer

The restartPolicy field (Always, OnFailure, or Never) controls whether and how kubelet restarts containers that exit.

Question 4

What happens to a Pod's IP address when the Pod is deleted and recreated by a ReplicaSet?

Accepted Answer

A new IP address is assigned from the cluster's Pod CIDR

Answer

Pods are ephemeral; when a Pod is deleted and a new one is created, the new Pod receives a fresh IP address from the cluster's Pod network CIDR.

Question 5

Which Kubernetes object stores sensitive configuration data such as passwords and API keys?

Accepted Answer

Secret

Answer

Secrets store sensitive data in base64-encoded form and can be mounted as volumes or exposed as environment variables, with tighter access controls than ConfigMaps.

(KCNA) Kubernetes and Cloud Native Associate Practice Test

(KCNA) Kubernetes and Cloud Native Associate Practice Test

KCNA Kubernetes Architecture & Components 3