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Practice Free KCNA Kubernetes and Cloud Native Associate (KCNA) Exam Questions Answers With Explanation

We at Crack4sure are committed to giving students who are preparing for the Linux Foundation KCNA Exam the most current and reliable questions . To help people study, we've made some of our Kubernetes and Cloud Native Associate (KCNA) exam materials available for free to everyone. You can take the Free KCNA Practice Test as many times as you want. The answers to the practice questions are given, and each answer is explained.

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Question # 6

Continuous delivery is ______.

A.

Manually deploying the code

B.

Coding, Building and Testing the code

C.

Automatically deploying code to [container or server] environment

Question # 7

Which of the following best describes the way kubernetes Role-based access control (RBAC) works?

A.

Kubernetes does not do RBAC

B.

Kubernetes RBAC states which users can perform which actions against which re-source

C.

Kubernetes RBAC lists which operations on which resources are denied to users

D.

Kubernetes RBAC is responsible for authenticating subjects such as users and groups

Question # 8

What framework allows developers to write code without worrying about the servers and operating systems they will run on?

A.

Virtualization

B.

Docker

C.

Serverless

D.

Kubernetes

Question # 9

Which command is used to expose Kubernetes service

A.

kubectl expose

B.

kubectl create

C.

kubectl run

Question # 10

What is the smallest possible unit in Kubernetes to run a container?

A.

pod

B.

docker

C.

service

D.

container

Question # 11

Open Container Initiative set container standards for

A.

Code, Build, Distribute, Deploy containers

B.

Run, build, and image

C.

Code, Build, Distribute containers

D.

Run, Build, Distribute containers

Question # 12

What is scheduling in Kubernetes

A.

Determining when to execute a cron-job

B.

Assigning pods to nodes

C.

Joining a new nodes to the clusters

D.

Setting a time for automated tasks

Question # 13

What are cluster-wide objects

A.

Service and Pods

B.

Volumes and Nodes

C.

ConfigMaps and Secrets

Question # 14

Which of the following are not the metrics for Site Reliability Engineering?

A.

Service Level Objectives 'SLO'

B.

Service Level Agreements 'SLA'

C.

Service Level Indicators 'SLI'

D.

Service Level Definition 'SLD'

Question # 15

What is FinOps?

A.

The first step in any cloud transformation

B.

Stage beyond DevOps or DevSecOps, where organization transition to serverless tech-nologies

C.

Using data to make cost savings decisions about cloud usage

D.

Specialized cloud features used by financial industries (example: banks, insurance, etc)

Question # 16

Which part of a Kubernetes cluster is responsible for running container workloads?

A.

Worker Node

B.

kube-proxy

C.

Control plane

D.

etcd

Question # 17

Stateful set requires which service for the network identity of pods?

A.

Ingress

B.

Load Balancer Service

C.

Headless Service

Question # 18

Which control plane component is responsible for scheduling pods?

A.

kube-proxy

B.

kube scheduler

C.

kubelet

D.

kube api-server

Question # 19

What tool allows us to build useful visual representations of prometheus data?

A.

Grafana

B.

kubectl

C.

Distributed system tracing

D.

Rook

E.

Kibana

Question # 20

What CNCF project is the leading DNS project in the CNCF landscape?

A.

Kubernetes

B.

gRPC

C.

KubeDNS

D.

CoreDNS

Question # 21

What is container orchestration?

A.

Packaging code and all of its dependencies into a single executable

B.

Adding code to a container image so it can run as a container

C.

Using automation to manage containers

D.

Spinning a new containers to replace old ones

Question # 22

Various Container Orchestrator Systems (COS)?

A.

Apache Mesos

B.

None of the options

C.

Docker Swarm

D.

Kubernetes

Question # 23

What is OPA?

A.

Open Permission Agent

B.

Online Policy Audit

C.

Open Policy Agent

D.

Offline Policy Accessor

Question # 24

Which Kubernetes resource creates Kubernetes Jobs?

A.

JobFactory

B.

CronJob

C.

Task

D.

JobDeployment

Question # 25

Flux is built using which toolkit?

A.

CI/CD

B.

DevSecOps

C.

GitOps

D.

DevOps

Question # 26

What Linux feature is used to provide isolation for containers?

A.

Processes

B.

Services

C.

NetworkPolicy

D.

Control groups

Question # 27

Have a pod 'hello' and a container in that pod 'green'. Which of the following commands would get the logs for that container?

A.

alias k='kubectl'

k logs -p hello -c green

B.

alias k='kubectl'

k logs hello -c green

C.

alias k='kubectl'

k get logs -p hello -c green

D.

alias k='kubectl'

k logs -p hello green

Question # 28

Which access control component of Kubernetes is responsible for authorization and decides what requestor is allowed to do?

A.

Service Account

B.

Role-based access control 'RBAC'

C.

Deployment

Question # 29

Which of the following is an example of vertical scaling?

A.

Using cluster autoscaler

B.

Adding more resources (memory and/or cpu) to a kubernetes node

C.

Adding more nodes to kubernetes cluster

D.

Adding more replica pods to a deployment

Question # 30

Which statement is true about Pod Networking?

A.

All pod requires an external DNS server to get the hostname

B.

All containers in a pod get a unique IP address

C.

All containers in a pod share a single IP address

D.

All pod requires NAT to get a unique IP address.

Question # 31

kubeadm is an administrative dashboard for kubernetes

A.

False

B.

True

Question # 32

What is not semantic versioning?

A.

1.0.0

B.

2022-05-04

C.

1.0.0-alpha

D.

1.0.0-beta.2

Question # 33

Which of the following best describes the way K8S Role-based access control (RBAC) works?

A.

K8S does not do RBAC or Cluster role

B.

RBAC lists which operations are denied to users

C.

States which users can perform which actions against the resources.

Question # 34

What is container runtime?

A.

The amount of time it takes a container to execute

B.

A container image format

C.

Another term of kubelet or kubectl

D.

Software that runs containers

Question # 35

Which style of operations are preferred for K8S and cloud native applications?

A.

JSON

B.

Declarative

C.

Imperative

Question # 36

Which of the following is not the part of Kubernetes Control Plane?

A.

kube scheduler

B.

etcd (pronounce: esty-d)

C.

kube api-server

D.

kube-proxy

Question # 37

The Kubernetes rolling update is used for __.

A.

Updating a service

B.

Scaling an application

C.

Updating a deployment

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