Pass Linux Foundation KCNA Exam Info and Free Practice Test [Q40-Q61]

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Pass Linux Foundation KCNA Exam Info and Free Practice Test

New 2022 Latest Questions KCNA Dumps - Use Updated Linux Foundation Exam


Linux Foundation KCNA Exam Syllabus Topics:

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

 

NEW QUESTION 40
What is a benefits of Kubernetes federation?

  • A. Low latency
  • B. Avoids scalability limits on pods and nodes
  • C. Creates highly available clusters in different regions

Answer: A,B,C

 

NEW QUESTION 41
What tool allows you to create self-managing, self-scaling, self-healing storage?

  • A. Persistent Volume
  • B. Storage Class
  • C. Volume
  • D. Rook
  • E. Persistent Volume Claim

Answer: D

Explanation:
https://rook.io/

 

NEW QUESTION 42
What is horizontal scaling?

  • A. Adding additional replicas of apps and servers
  • B. Moving workloads from one server to another
  • C. Creating a Deployment
  • D. Adding resources to existing apps and servers

Answer: A

Explanation:
https://kubernetes.io/docs/tasks/run-application/horizontal-pod-autoscale/

 

NEW QUESTION 43
What framework allows developers to write code without worrying about the servers and operating systems they will run on?

  • A. Docker
  • B. Serverless
  • C. Virtualization
  • D. Kubernetes

Answer: B

 

NEW QUESTION 44
Which kubernetes object do deployments use behind the scenes when they need to scale pods?

  • A. Horizontal pod autoscaler
  • B. kubectl
  • C. Replication controller
  • D. ReplicaSets

Answer: D

Explanation:
https://kubernetes.io/docs/concepts/workloads/controllers/replicaset/

 

NEW QUESTION 45
To specify a Kubernetes object which language is used?

  • A. JSON
  • B. Go
  • C. YAML
  • D. Node
  • E. Python

Answer: C

Explanation:
https://kubernetes.io/docs/concepts/overview/working-with-objects/kubernetes-objects/

 

NEW QUESTION 46
Which Kubernetes resource creates Kubernetes Jobs?

  • A. Task
  • B. CronJob
  • C. JobDeployment
  • D. JobFactory

Answer: B

Explanation:
https://kubernetes.io/docs/concepts/workloads/controllers/cron-jobs/

 

NEW QUESTION 47
Which tool is built on the GitOps toolkit?

  • A. Flux
  • B. Jenkins-X
  • C. Jenkins
  • D. ArgoCD
  • E. Travis CI
  • F. GitHub Workflow & Actions

Answer: A

Explanation:
https://fluxcd.io/#gitops-toolkit

Note: Argo CD is a GitOps tool and not using GitOps toolkit

 

NEW QUESTION 48
What is the use of labels in Kubernetes?

  • A. It is used to assign a name to an object.
  • B. It is used to assign key-value pair to an object
  • C. All of the options
  • D. It is used to assign annotation to an object

Answer: B

Explanation:
https://kubernetes.io/docs/concepts/overview/working-with-objects/labels/

 

NEW QUESTION 49
There are three Nodes in a cluster, and want to run exactly one replica of a Pod on each Node. Pre-fer to automatically create a replica on any new Nodes when they are added. Which Kubernetes re-source should you use?

  • A. ReplicaSet
  • B. NodeSet
  • C. DaemonSet
  • D. Deployment
  • E. StatefulSet

Answer: C

Explanation:
https://kubernetes.io/docs/concepts/workloads/controllers/daemonset/
A DaemonSet runs replicas on all (or just some) Nodes in the cluster.

 

NEW QUESTION 50
How to get the logs of the previously terminated nginx container from the web pod?

  • A. kubectl logs -f -c nginx web
  • B. kubectl logs -p -c nginx web
  • C. kubectl logs -p -c web nginx
  • D. kubectl logs nginx

Answer: B

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

 

NEW QUESTION 51
Observability and monitoring are not the same?

  • A. False
  • B. True

Answer: B

 

NEW QUESTION 52
How can persistent volume be provisioned?

  • A. Bootstrap
  • B. Automatically
  • C. Dynamically

Answer: C

Explanation:
https://kubernetes.io/docs/concepts/storage/persistent-volumes/

 

NEW QUESTION 53
What are cluster-wide objects

  • A. ConfigMaps and Secrets
  • B. Volumes and Nodes
  • C. Service and Pods

Answer: B

Explanation:
https://kubernetes.io/docs/concepts/overview/working-with-objects/_print/

 

NEW QUESTION 54
What is the command used to scale the application?

  • A. kubectl run
  • B. kubectl explain
  • C. kubectl scale

Answer: C

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

 

NEW QUESTION 55
What feature is used for selecting the container runtime configuration?

  • A. RuntimeContainer
  • B. RuntimeClass
  • C. Runtime
  • D. RuntimeConfig

Answer: B

Explanation:
https://kubernetes.io/docs/concepts/containers/runtime-class/

 

NEW QUESTION 56
The 4C's of Cloud Native security

  • A. Chroot, Compute, Cluster and Container
  • B. Code, Containers, Compute, and Cloud
  • C. Cluster, Cloud, Compute, and Containers
  • D. Cloud, Clusters, Containers, and Code

Answer: D

Explanation:
https://kubernetes.io/docs/concepts/security/overview/

 

NEW QUESTION 57
A ________ is a ready-to-run software package, containing everything needed to run an application.

  • A. Docker
  • B. Container Runtime
  • C. Container Image
  • D. Container Repository

Answer: C

Explanation:
https://kubernetes.io/docs/concepts/containers/#container-images

 

NEW QUESTION 58
Which of the following is not the part of Kubernetes Control Plane?

  • A. kube scheduler
  • B. kube api-server
  • C. kube-proxy
  • D. etcd (pronounce: esty-d)

Answer: C

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

 

NEW QUESTION 59
Which is NOT a use case for the Kubernetes dashboard?

  • A. Installing new Kubernetes cluster
  • B. Troubleshooting any issues with applications
  • C. Managing the entire Kubernetes cluster
  • D. Managing running applications

Answer: A

 

NEW QUESTION 60
Which command is used to expose Kubernetes service

  • A. kubectl run
  • B. kubectl create
  • C. kubectl expose

Answer: C

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

 

NEW QUESTION 61
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