최신 KCNA 무료덤프 - Linux Foundation Kubernetes and Cloud Native Associate

문제1

You are using a CI/CD pipeline with Jenkins to deploy applications to Kubernetes. Which of the following strategies can be used to handle sensitive credentials (e.g., API keys, database passwords) within the pipeline?

A. Storing credentials in plain text files within the code repository.

B. Hardcoding credentials into the Jenkinsfile.

C. Storing credentials in environment variables within the Jenkins server.

D. Using a dedicated secret management tool (e.g., Vault) to manage and access credentials.

E. Using Kubernetes Secrets to securely store and inject credentials.

정답: D,E

설명: (DumpTOP 회원만 볼 수 있음)

문제2

Your organization is migrating a legacy web application to a serverless architecture on Azure. You want to ensure that the application's state is persisted during and after migration. Which Azure service would be most suitable for storing and managing the application's state?

A. Azure Storage Account

B. Azure Service Bus

C. Azure Event Hubs

D. Azure SQL Database

E. Azure Cosmos DB

정답: D,E

설명: (DumpTOP 회원만 볼 수 있음)

문제3

Which of the following security features in Kubernetes allows you to define communication rules between pods based on labels, namespaces, and other criteria?

A. Namespace Quotas

B. Pod Security Policies

C. Admission Controllers

D. Resource Quotas

E. Network Policies

정답: E

설명: (DumpTOP 회원만 볼 수 있음)

문제4

You need to configure a Kubernetes cluster to use a specific DNS server. Which of the following methods can be used to achieve this?

A. Setting the 'dnsConfig' field in the Pod spec with custom DNS server details

B. Configuring a custom DNS service in the cluster using a Deployment and a Service

C. Setting the 'dnsPolicy' field in the Pod spec to 'ClusterFirst'

D. Using the kubelet command-line argument -cluster-dns

E. Modifying the /etc/resolv.conf file on each node

정답: A,D

설명: (DumpTOP 회원만 볼 수 있음)

문제5

Your organization is migrating a monolithic application to a serverless architecture on Google Cloud Platform. Which Google Cloud service would be the most suitable for running your application's backend logic?

A. Google Kubernetes Engine (GKE)

B. Google Cloud SQL

C. Google Cloud Storage

D. Google App Engine

E. Google Cloud Functions

정답: E

설명: (DumpTOP 회원만 볼 수 있음)

문제6

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 continue to run using the requested amount of CPU.

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

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

E. The pod will be killed and restarted.

정답: A

설명: (DumpTOP 회원만 볼 수 있음)

문제7

Consider the following Kubernetes resource configuration for a deployment:

If each pod is consistently utilizing only 50% of the requested CPU and memory, what are the potential cost-saving measures you could take without impacting performance?

A. Increase the 'limits' values for CPU and memory to 400m and 1024Mi, respectively.

B. Leave the current configuration as it is; the application is already optimized.

C. Reduce the 'replicas' value to 2 to decrease the number of pods.

D. Reduce the 'requests' values for CPU and memory to 50m and 128Mi, respectively.

E. Utilize a vertical pod autoscaler (VPA) to dynamically adjust the resource requests and limits based on actual usage.

정답: D,E

설명: (DumpTOP 회원만 볼 수 있음)

문제8

What is the purpose of a Kubernetes Ingress resource in the context of CI/CD and application deployment?

A. To configure automated rollbacks during deployment failures.

B. To define the health checks for a Deployment.

C. To manage the communication between pods within a deployment.

D. To provide a single entry point for external traffic to access services within the cluster.

E. To define the desired number of replicas for a Deployment.

정답: D

설명: (DumpTOP 회원만 볼 수 있음)

문제9

You are running a Kubernetes cluster with multiple nodes. Your application's Pods need to be scheduled across different nodes for high availability. Which Kubernetes concept allows you to control the distribution of Pods across the cluster?

A. Node Affinity

B. Deployment

C. Pod Security Policy

D. Service

E. Ingress

정답: A

설명: (DumpTOP 회원만 볼 수 있음)

문제10

You are migrating a monolithic application to a microservices architecture on Kubernetes. You choose to use Istio to manage the communication between these new services. Which of the following is NOT a benefit of adopting Istio in this scenario?

A. Istio simplifies the process of migrating existing code to a microservices architecture

B. Istio's control plane simplifies the deployment and management of microservices

C. Istio allows for easier debugging and troubleshooting of complex microservice interactions

D. Istio helps in achieving better scalability and fault tolerance for microservices

E. Istio provides a consistent way to handle network calls and security across all microservices

정답: A

설명: (DumpTOP 회원만 볼 수 있음)

최신 KCNA 무료덤프 - Linux Foundation Kubernetes and Cloud Native Associate

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