(2022) KCNA Dumps and Practice Test (128 Questions) [Q19-Q43]

30 Sep, 2022 By admin KCNA, Linux Foundation 0 Comments

(2022) KCNA Dumps and Practice Test (128 Questions) [Q19-Q43]

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(2022) KCNA Dumps and Practice Test (128 Questions)

Guide (New 2022) Actual Linux Foundation KCNA Exam Questions

Linux Foundation KCNA Exam Syllabus Topics:

Topic	Details
Topic 1	Community and Governance, Roles and Personas Cloud Native Architecture1
Topic 2	Application Delivery Fundamentals GitOps, CI CD Cloud Native Application Delivery
Topic 3	Container Orchestration Fundamentals Container Orchestration, Networking, Service Mesh, Security
Topic 4	Kubernetes Architecture, Kubernetes Fundamentals, Kubernetes Resources, Kubernetes API
Topic 5	Telemetry & Observability Cloud Native Observability

NEW QUESTION 19
Which project in this list is a leading project in the observability space?

Jaeger

Vitess

Argo

Kubernetes

https://github.com/cncf/landscape#trail-map

NEW QUESTION 20
Which of the following computing model doesn’t require you to provision infrastructure?

None of the above

Bare Metal

Compute Engine

Virtual Machines

Serverless

NEW QUESTION 21
Which of the following is an advantage a cloud-native microservices application has over monolithic applications?

Cloud-native microservices applications tend to be faster and more responsive than monolithic applications.

Cloud-native microservice applications tend to be easier to troubleshoot.

Cloud-native microservice applications tend to be easier to scale and perform updates on.

Cloud-native applications tend to be microservice base, they have individual services that can be independently scaled, updated and rolled back. This makes scaling and update operations simpler and less risky.

NEW QUESTION 22
Notary and the update framework leading security projects in CNCF

TRUE

FALSE

https://github.com/cncf/landscape#trail-map

NEW QUESTION 23
Which component of the kubernetes control-plane (master) are all requests to deploy and manage objects posted to?

ETCD

Controller Manager

Kube-proxy

API Server

Kubelet

https://kubernetes.io/docs/reference/command-line-tools-reference/kube-apiserver/

NEW QUESTION 24
To run a startup task before a Pod’s container starts up. What Kubernetes feature can help you ac-complish this?

Init container

Sidecar container

Startup probe

DaemonSet

https://kubernetes.io/docs/concepts/workloads/pods/init-containers/

NEW QUESTION 25
What is a benefits of Kubernetes federation?

Avoids scalability limits on pods and nodes

Creates highly available clusters in different regions

Low latency

NEW QUESTION 26
What is container runtime?

The amount of time it takes a container to execute

A container image format

Another term of kubelet or kubectl

Software that runs containers

https://www.aquasec.com/cloud-native-academy/container-security/container-runtime/

NEW QUESTION 27
Which of the following best describes the way K8S Role-based access control (RBAC) works?

K8S does not do RBAC or Cluster role

RBAC lists which operations are denied to users

States which users can perform which actions against the resources.

https://kubernetes.io/docs/reference/access-authn-authz/rbac/

NEW QUESTION 28
Continuous delivery is ______.

Manually deploying the code

Coding, Building and Testing the code

Automatically deploying code to [container or server] environment

NEW QUESTION 29
How to create deployment name app-dep, image=nginx, and replicas 5 using imperative command?

kubectl create app-dep deployment –image=nginx –replicas=5

kubectl create deployment app-dep –image=nginx –replicas=5

kubectl create app-dep deployment –replicas=5 –image=nginx

https://kubernetes.io/docs/reference/generated/kubectl/kubectl-commands#-em-deployment-em-

NEW QUESTION 30
Fluentd is the only way to export logs from Kubernetes cluster or applications running in cluster

True

False

https://github.com/cncf/landscape#trail-map

NEW QUESTION 31
Which CNCF project is the dominant project with respect to container registries

Envoy

Harbor

Kubernetes

Rook

https://goharbor.io/

NEW QUESTION 32
What can you use to add new resource types to your cluster?

start container

CustomResourceDefinitions

init container

Flux

CRI-O

https://kubernetes.io/docs/concepts/extend-kubernetes/api-extension/custom-resources/

NEW QUESTION 33
How can you achieve cost optimization in the cloud environment?

Use On Demand instances

Use Spot Instances

Use Reserved Instances

Use Bare Metal

NEW QUESTION 34
Which of the following is NOT a Kubernetes component?

Scheduler

Docker

Cloud Controller manager

Kube-proxy

Docker is not a Kubernetes component.

NEW QUESTION 35
Which control plane component is responsible for scheduling pods?

kube-proxy

kube scheduler

kubelet

kube api-server

https://kubernetes.io/docs/concepts/overview/components/

NEW QUESTION 36
The Kubernetes API provides an interface for storing objects. Which of the following describes the type of objects stored by the Kubernetes API?

Containers

REST

YAML

ETCD

Kubernetes objects are RESTful objects.

NEW QUESTION 37
What command use to get documentation about kubernetes resource type

alias k=’kubectl’
k api-resources

alias k=’kubectl’
k api-list

alias k=’kubectl’
k explain

alias k=’kubectl’
k get resource

https://kubernetes.io/docs/reference/generated/kubectl/kubectl-commands#explain

NEW QUESTION 38
Which of the following is not the part of Kubernetes Control Plane?

kube scheduler

etcd (pronounce: esty-d)

kube api-server

kube-proxy

https://kubernetes.io/docs/concepts/overview/components/

NEW QUESTION 39
Which of the following command is used to get detailed information about the pod?

kubectl info

kubectl get

kubectl describe

kubectl explain

https://kubernetes.io/docs/reference/generated/kubectl/kubectl-commands#describe

NEW QUESTION 40
Which role is responsible of creating service level indicator ‘SLI’, service level objective ‘SLO’, & Service Level Agreements ‘SLA’

Site reliability engineer ‘SRE’

DevOps

GitOps

Security and compliance engineer

Developer

https://www.atlassian.com/incident-management/kpis/sla-vs-slo-vs-sli