Linux Foundation KCNAリアルに2023年最新のブレーン問題集で模擬試験問題集
KCNA試験問題 リアルなKCNA練習問題集
質問 # 12
What is Open Container Initiative 'OCI'?
- A. A protocol for communicating with the kubernetes api
- B. The governing body of the Cloud Native Computing Foundation 'CNCF'
- C. An organization that creates open standards for containers
- D. An open standard for managing service mesh in kubernetes
正解：C
解説：
https://opencontainers.org/
質問 # 13
What is the main difference between Argo vs. Flux CD?
- A. No difference; both are push-based
- B. Argo is pull-based, and Flux is push-based
- C. Argo is push-based, and Flux is pull-based
- D. No difference; both are pull-based
正解：C
解説：
AgroCD: https://argo-cd.readthedocs.io/en/stable/developer-guide/ci/#can-i-retrigger-the-checks-without-pushing-a-new-commit
FluxCD: https://fluxcd.io/
質問 # 14
What CNCF project is the leading DNS project in the CNCF landscape?
- A. gRPC
- B. Kubernetes
- C. KubeDNS
- D. CoreDNS
正解：D
解説：
https://github.com/cncf/landscape#trail-map
質問 # 15
Which of the following is not the Kubernetes AutoScaling Strategy?
- A. Load Balancing AutoScaler
- B. Cluster Autoscaler
- C. Vertical Pod Autoscaler
- D. Horizontal Pod Autoscaler
正解：A
解説：
https://learnk8s.io/kubernetes-autoscaling-strategies
質問 # 16
What tool allows you to create self-managing, self-scaling, self-healing storage?
- A. Persistent Volume
- B. Persistent Volume Claim
- C. Rook
- D. Volume
- E. Storage Class
正解：C
解説：
https://rook.io/
質問 # 17
Which of the following is not the required field to describe Kubernetes objects?
- A. metadata
- B. Container
- C. spec
- D. apiVersion
- E. Kind
正解：B
解説：
https://kubernetes.io/docs/concepts/overview/working-with-objects/kubernetes-objects/
質問 # 18
What is the default service type in Kubernetes?
- A. serviceType
- B. NodePort
- C. loadBalancer
- D. CusterIP
正解：D
解説：
https://kubernetes.io/docs/concepts/services-networking/service/#publishing-services-service-types
質問 # 19
What is the smallest possible unit in Kubernetes to run a container?
- A. container
- B. docker
- C. service
- D. pod
正解：D
解説：
https://kubernetes.io/docs/concepts/workloads/pods/
質問 # 20
Which command-line tool is used to interact with the Kubernetes cluster?
- A. kube-scheduler
- B. kube-api
- C. kubectl
正解：C
解説：
https://kubernetes.io/docs/reference/kubectl/
質問 # 21
Which project is not a dominant CNCF project in the storage landscape?
- A. Envoy
- B. Vitess
- C. TiKV
- D. Rook
正解：A
解説：
https://github.com/cncf/landscape#trail-map
質問 # 22
Which of the following best describes the way K8S Role-based access control (RBAC) works?
- A. RBAC lists which operations are denied to users
- B. States which users can perform which actions against the resources.
- C. K8S does not do RBAC or Cluster role
正解：B
解説：
https://kubernetes.io/docs/reference/access-authn-authz/rbac/
質問 # 23
Which access control component of Kubernetes is responsible for authorization and decides what requestor is allowed to do?
- A. Role-based access control 'RBAC'
- B. Service Account
- C. Deployment
正解：A
解説：
https://kubernetes.io/docs/reference/access-authn-authz/authorization/
質問 # 24
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. DaemonSet
- B. StatefulSet
- C. NodeSet
- D. ReplicaSet
- E. Deployment
正解：A
解説：
https://kubernetes.io/docs/concepts/workloads/controllers/daemonset/
A DaemonSet runs replicas on all (or just some) Nodes in the cluster.
質問 # 25
What is container runtime?
- A. Another term of kubelet or kubectl
- B. The amount of time it takes a container to execute
- C. A container image format
- D. Software that runs containers
正解：D
解説：
https://www.aquasec.com/cloud-native-academy/container-security/container-runtime/
質問 # 26
What do you call the pattern where you add a second container to the pod to collect logs infor-mation?
- A. Application level logging
- B. Node level logging
- C. Sidecar container logging
- D. Cluster level logging
正解：C
解説：
https://kubernetes.io/docs/concepts/cluster-administration/logging/
質問 # 27
What is the most common way to scale the application in the cloud environment?
- A. Vertical Scaling
- B. Parallel Scaling
- C. Horizontal Scaling
正解：C
解説：
https://kubernetes.io/docs/tasks/run-application/horizontal-pod-autoscale/
質問 # 28
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