Kubernetes and Cloud Native Associate

Here you have the best Linux Foundation KCNA practice exam questions

You have 68 total questions to study from
Each page has 5 questions, making a total of 14 pages
You can navigate through the pages using the buttons at the bottom
This questions were last updated on December 22, 2024

Question 1 of 68

What native runtime is Open Container Initiative (OCI) compliant?

runC

runV

kata-containers

gvisor

Correct Answer: A

runC is the native runtime that is Open Container Initiative (OCI) compliant. It is a lightweight, low-level container runtime that uses the container library libcontainer to provide facilities for container life cycle management, adhering to OCI specifications.

Question 2 of 68

Which API object is the recommended way to run a scalable, stateless application on your cluster?

ReplicaSet

Deployment

DaemonSet

Pod

Correct Answer: B

Question 3 of 68

A CronJob is scheduled to run by a user every one hour. What happens in the cluster when it's time for this CronJob to run?

Kubelet watches API Server for CronJob objects. When it's time for a Job to run, it runs the Pod directly.

Kube-scheduler watches API Server for CronJob objects, and this is why it's called kube-scheduler.

CronJob controller component creates a Pod and waits until it finishes to run.

CronJob controller component creates a Job. Then the Job controller creates a Pod and waits until it finishes to run.

Correct Answer: D

Question 4 of 68

What is the purpose of the kubelet component within a Kubernetes cluster?

A dashboard for Kubernetes Clusters that allows management and troubleshooting of applications.

A network proxy that runs on each node in your cluster, implementing part of the Kubernetes Service concept.

A component that watches for newly created Pods with no assigned node, and selects a node for them to run on.

An agent that runs on each node in the cluster. It makes sure that containers are running in a Pod.

Correct Answer: D

The kubelet is an agent that runs on each node in the cluster. It ensures that containers are running in a Pod. The kubelet communicates with the Kubernetes control plane to determine the desired state of the pods and works to maintain that state on its node.

Question 5 of 68

What is the default value for authorization-mode in Kubernetes API server?

--authorization-mode=RBAC

--authorization-mode=AlwaysAllow

--authorization-mode=AlwaysDeny

--authorization-mode=ABAC

Correct Answer: B

The default value for the authorization-mode in Kubernetes API server is --authorization-mode=AlwaysAllow. This means that all requests are allowed by default unless another authorization mode is specified.