KCNA試験無料問題集（203題）「Linux Foundation Kubernetes and Cloud Native Associate 認定」

出題：1

You have a Kubernetes cluster with a pod that uses a resource limit of 100m CPU. What happens if the pod requests more CPU resources than the limit?

A. The pod will be throttled and its performance will be impacted.

B. The pod will be killed and restarted.

C. The pod will be automatically scaled down to 100m CPU.

D. The pod will be scheduled on a different node with more available resources.

E. The pod will continue to run using the requested amount of CPU.

正解：A 解答を投票する

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出題：2

You are running a service in Kubernetes that uses a persistent volume. You need to ensure that the volume is automatically cleaned up when the service is deleted. Which of the following approaches would you use?

A. There is no automatic way to clean up a persistent volume when a service is deleted; it needs to be done manually.

B. Configure a CronJob to periodically check for unused volumes and delete them

C. Set the 'persistentVolumeReclaimPolicy' to 'Delete' in the PersistentVolumeClaim

D. Use a DaemonSet to run a cleanup script that removes the volume when the service is deleted

E. Delete the PersistentVolumeClaim manually when the service is deleted

正解：C 解答を投票する

解説: (GoShiken メンバーにのみ表示されます)

出題：3

You're running a Kubernetes cluster on a public cloud provider, and you want to optimize for cost efficiency. Which of the following strategies is LEAST effective for achieving this goal?

A. Utilize spot instances or preemptible nodes for workloads that can tolerate interruptions.

B. Implement a horizontal pod autoscaler (HPA) to automatically scale deployments based on resource utilization.

C. Always use the most powerful and expensive node types to ensure high performance and availability.

D. Configure resource quotas to limit the resources allocated to namespaces and deployments.

E. Create a separate namespace for each workload type to isolate resource consumption and apply different resource quotas.

正解：C 解答を投票する

解説: (GoShiken メンバーにのみ表示されます)

出題：4

You have a Kubernetes cluster with a HorizontalPodAutoscaler (HPA) configured to scale a Deployment. You want to limit the maximum number of Pods the HPA can create to avoid resource exhaustion. How can you achieve this?

A. Set a resource quota for the namespace where the Deployment is running.

B. There is no direct way to limit the maximum number of Pods in an HPA.

C. Configure a limit range for the Deployment to restrict the number of Pods.

D. Use the *maxReplicas• parameter in the HPA configuration.

E. Use the •replicas' field in the Deployment to specify the maximum number of Pods.

正解：D 解答を投票する

解説: (GoShiken メンバーにのみ表示されます)

出題：5

You are setting up a Kubernetes cluster with a large number of pods. You want to optimize the network communication between these pods for high performance and minimal latency. Which Kubernetes networking option would you consider for this scenario?

A. Flannel

B. Weave Net

C. kube-proxy

D. Canal

E. Calico

正解：B,E 解答を投票する

解説: (GoShiken メンバーにのみ表示されます)

出題：6

You are running a Kubernetes cluster with three nodes. One node experiences a hardware failure. Which of the following Kubernetes features ensures that your application remains available and running?

A. Pod Disruption Budgets

B. Horizontal Pod Autoscaling

C. Rolling updates

D. Self-healing

E. Node affinity

正解：D 解答を投票する

解説: (GoShiken メンバーにのみ表示されます)

出題：7

You are setting up a new Kubernetes cluster and need to configure a network policy that allows traff... This content requires a subscription.

正解：C 解答を投票する

解説: (GoShiken メンバーにのみ表示されます)

出題：8

You are running a microservices application in Kubernetes. Each microservice has its own Deployment and Service. You want to ensure that communication between these microservices is secure. Which Kubernetes feature would be most appropriate for this purpose?

A. Ingress

B. NetworkPolicy

C. PodSecurityPolicy

D. Service Account

E. Secret

正解：B 解答を投票する

解説: (GoShiken メンバーにのみ表示されます)

出題：9

Your organization uses multiple cloud providers and wants to ensure that your applications can run seamlessly across different environments. What open standard would be most beneficial for this scenario?

A. Kubernetes Resource Quotas

B. CloudEvents

C. Open Policy Agent (OPA)

D. open Service Mesh (OSM)

E. Kubernetes Ingress

正解：B 解答を投票する

解説: (GoShiken メンバーにのみ表示されます)

出題：10

You're running a stateful application in Kubernetes with a HorizontalPodAutoscaler (HPA) configured. You want to ensure that scaling does not disrupt the application's state. What approach would you take to address this concern?

A. Configure the HPA to scale up and down only when the application is idle.

B. Use a persistent volume claim (PVC) to store the application's state.

C. Disable scaling for the application to maintain state consistency.

D. Use a StatefulSet to manage the deployment of the application.

E. Implement a custom scaling logic that ensures state persistence during scaling events.

正解：B,D,E 解答を投票する

解説: (GoShiken メンバーにのみ表示されます)

KCNA試験無料問題集「Linux Foundation Kubernetes and Cloud Native Associate 認定」