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Truly Beneficial For Your Linux Foundation Exam (Updated 128 Questions)
Linux Foundation KCNA Exam Syllabus Topics:
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NEW QUESTION 39
What is etcd used for in Kubernetes?
- A. Backend object storage for the Kubernetes API
- B. Kubernetes API security
- C. Integration with cloud platforms
- D. Network routing for the cluster
Answer: A
Explanation:
etcd serves as a distributed object store that backs the Kubernetes API.
NEW QUESTION 40
Which of the following computing model doesn't require you to provision infrastructure?
- A. Serverless
- B. Virtual Machines
- C. Bare Metal
- D. Compute Engine
- E. None of the above
Answer: A
Explanation:
NEW QUESTION 41
A ________ is a ready-to-run software package, containing everything needed to run an application.
- A. Container Repository
- B. Container Image
- C. Container Runtime
- D. Docker
Answer: B
Explanation:
https://kubernetes.io/docs/concepts/containers/#container-images
NEW QUESTION 42
Various Container Orchestrator Systems (COS)?
- A. None of the options
- B. Kubernetes
- C. Docker Swarm
- D. Apache Mesos
Answer: B,C,D
NEW QUESTION 43
Flux is built using which toolkit?
- A. DevOps
- B. CI/CD
- C. DevSecOps
- D. GitOps
Answer: D
Explanation:
https://fluxcd.io/
NEW QUESTION 44
What makes cloud native technology so important?
- A. It helps gather software requirements
- B. It makes operational centric
- C. It strengthens team
- D. It makes data centric
- E. It removes roadblocks to innovation
Answer: E
Explanation:
https://github.com/cncf/foundation/blob/main/charter.md
NEW QUESTION 45
What do control groups provide when it come to containers
- A. Image Storage
- B. Isolation
- C. Logging
- D. Permission
Answer: B
Explanation:
NEW QUESTION 46
An application that is nearing its usage limit. To increase the amount of users it can handle, you allo-cate additional memory resources to each instance of the application. What type of scaling is this?
- A. Recursive Scaling
- B. Vertical Scaling
- C. Horizontal Scaling
- D. Cluster Autoscaling
Answer: B
Explanation:
NEW QUESTION 47
Which tool is built on the GitOps toolkit?
- A. ArgoCD
- B. Jenkins-X
- C. Travis CI
- D. Flux
- E. GitHub Workflow & Actions
- F. Jenkins
Answer: D
Explanation:
https://fluxcd.io/#gitops-toolkit
Note: Argo CD is a GitOps tool and not using GitOps toolkit
NEW QUESTION 48
Which control plane component is responsible for scheduling pods?
- A. kube api-server
- B. kubelet
- C. kube scheduler
- D. kube-proxy
Answer: C
Explanation:
https://kubernetes.io/docs/concepts/overview/components/
NEW QUESTION 49
Which organizational persona creates Service Level Agreements 'SLA', Service Level Objectives 'SLO', and Service Level Indicator 'SLI'?
- A. DevOps
- B. Site Reliability Engineer (SRE)
- C. Developer
- D. DevSecOps
- E. Security and Compliance Engineer
Answer: B
Explanation:
SREs create SLAs, SLOs, and SLIs to define and implement standards for application and infra-structure reliability.
NEW QUESTION 50
What command can you use to get documentation about a resource type from the command line?
- A. kubectl explain
- B. kubeadm get-resource
- C. kubectl get
- D. kubectl api-resources
Answer: A
Explanation:
https://kubernetes.io/docs/reference/generated/kubectl/kubectl-commands#explain
NEW QUESTION 51
Which authentication method allows JWTs to authenticate?
- A. Anonymous
- B. OPA gatekeeper
- C. OpenId connect
- D. Client 'TLS' certificates
Answer: C
NEW QUESTION 52
Which component of the kubernetes control-plane (master) are all requests to deploy and manage objects posted to?
- A. Controller Manager
- B. Kube-proxy
- C. ETCD
- D. API Server
- E. Kubelet
Answer: D
Explanation:
https://kubernetes.io/docs/reference/command-line-tools-reference/kube-apiserver/
NEW QUESTION 53
How does service logical group set of pods?
- A. Using label and selectors
- B. Using hostname
- C. Using IP address
Answer: A
Explanation:
https://kubernetes.io/docs/concepts/services-networking/service/
NEW QUESTION 54
Which of the following is an advantage a cloud-native microservices application has over monolithic applications?
- A. Cloud-native microservice applications tend to be easier to troubleshoot.
- B. Cloud-native microservice applications tend to be easier to scale and perform updates on.
- C. Cloud-native microservices applications tend to be faster and more responsive than monolithic applications.
Answer: B
Explanation:
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 55
Which role is responsible of creating service level indicator 'SLI', service level objective 'SLO', & Service Level Agreements 'SLA'
- A. DevOps
- B. Site reliability engineer 'SRE'
- C. Developer
- D. Security and compliance engineer
- E. GitOps
Answer: B
Explanation:
https://www.atlassian.com/incident-management/kpis/sla-vs-slo-vs-sli
NEW QUESTION 56
What is FinOps?
- A. Using data to make cost savings decisions about cloud usage
- B. The first step in any cloud transformation
- C. Stage beyond DevOps or DevSecOps, where organization transition to serverless tech-nologies
- D. Specialized cloud features used by financial industries (example: banks, insurance, etc)
Answer: A
Explanation:
https://www.servicenow.com/products/it-asset-management/what-is-finops.html
NEW QUESTION 57
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 58
Which Kubernetes resource creates Kubernetes Jobs?
- A. Task
- B. JobDeployment
- C. CronJob
- D. JobFactory
Answer: C
Explanation:
https://kubernetes.io/docs/concepts/workloads/controllers/cron-jobs/
NEW QUESTION 59
What command to view the kube config?
- A. kubectl config view
- B. kubectl view config
- C. kubectl get kubeconfig
Answer: A
Explanation:
https://kubernetes.io/docs/reference/generated/kubectl/kubectl-commands#-em-view-em-
NEW QUESTION 60
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