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Linux Foundation KCNA Exam Syllabus Topics:
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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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