DOP-C02認定テキスト & DOP-C02学習教材

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Amazon DOP-C02（AWS認定DevOps Engineer-Professional）認定試験は、DevOpsエンジニアリングの分野で自分自身を確立しようとしている人にとって非常に人気のある認定です。この認定は、専門家がAWSツールとサービスを使用して分散アプリケーションシステムを管理および運用するために必要なスキルと知識をテストするように設計されています。

AWS Certified DevOps Engineer - Professional認定試験は、AWSでDevOpsの役割を担う専門家にとって貴重な資格です。この試験は、AWS上でDevOpsプラクティスを実装・管理するための主要なコンセプトやベストプラクティスの理解を検証し、スケーラブルで安全なシステムを設計、展開、および運用する能力を証明します。

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Amazon AWS Certified DevOps Engineer - Professional 認定 DOP-C02 試験問題 (Q240-Q245):

質問 # 240
A company runs an application for multiple environments in a single AWS account. An AWS CodePipeline pipeline uses a development Amazon Elastic Container Service (Amazon ECS) cluster to test an image from an Amazon Elastic Container Registry (Amazon ECR) repository. The pipeline promotes the image to a production ECS cluster.
The company needs to move the production cluster into a separate AWS account in the same AWS Region.
The production cluster must be able to download the images over a private connection.
Which solution will meet these requirements?

A. Use Amazon ECR VPC endpoints and an Amazon S3 gateway endpoint. In the separate AWS account, create an ECR repository. Set the repository policy to allow the production ECS tasks to pull images from the main AWS account. Configure the production ECS task execution role to have permission to download the image from the ECR repository.
B. Set a policy on the production ECR repository in the main AWS account. Configure the repository policy to allow the production ECS tasks in the separate AWS account to pull images from the main account. Configure the production ECS task execution role to have permission to download the image from the ECR repository.
C. Use Amazon ECR VPC endpoints and an Amazon S3 gateway endpoint. Set a repository policy on the ECR repository in the main AWS account. Configure the repository policy to allow the production ECS tasks in the separate AWS account to pull images from the main account. Configure the production ECS task execution role to have permission to download the image from the ECR repository.
D. Configure ECR private image replication in the main AWS account. Activate cross-account replication.
Define the destination account ID of the separate AWS account.

正解：C

解説：
Comprehensive and Detailed Explanation From Exact Extract of DevOps Engineer documents only:
The correct solution is to allow the production ECS cluster in the separate AWS account to pull images directly from the Amazon ECR repository in the main AWS account by using a cross-account repository policy and the required private networking endpoints.
Option D satisfies both requirements:
* Cross-account image access is provided by the repository policy on the Amazon ECR repository in the main AWS account.
* Private image download is provided by Amazon ECR VPC endpoints together with the Amazon S3 gateway endpoint, which are required for private image pulls without using the public internet.
* The ECS task execution role in the production account also needs permission to pull the image.
Why the other options are incorrect:
A). Creating an ECR repository in the separate account is unnecessary for this requirement, and the option does not correctly describe the image pull model from the source repository.
B). This option addresses cross-account access, but it does not include the VPC endpoints and S3 gateway endpoint required for private connectivity.
C). Cross-account replication copies images to another account, but this option does not address the requirement for the production cluster to download images over a private connection.

質問 # 241
A company uses AWS CodeArtifact to centrally store Python packages. The CodeArtifact repository is configured with the following repository policy.

A development team is building a new project in an account that is in an organization in AWS Organizations.
The development team wants to use a Python library that has already been stored in the CodeArtifact repository in the organization. The development team uses AWS CodePipeline and AWS CodeBuild to build the new application. The CodeBuild job that the development team uses to build the application is configured to run in a VPC Because of compliance requirements the VPC has no internet connectivity.
The development team creates the VPC endpoints for CodeArtifact and updates the CodeBuild buildspec yaml file. However, the development team cannot download the Python library from the repository.
Which combination of steps should a DevOps engineer take so that the development team can use Code Artifact? (Select TWO.)

A. Share the CodeArtifact repository with the organization by using AWS Resource Access Manager (AWS RAM).
B. Specify the account that hosts the repository as the delegated administrator for CodeArtifact in the organization.
C. Create an Amazon S3 gateway endpoint Update the route tables for the subnets that are running the CodeBuild job.
D. Update the role that the CodeBuild project uses so that the role has sufficient permissions to use the CodeArtifact repository.
E. Update the repository policy's Principal statement to include the ARN of the role that the CodeBuild project uses.

正解：C、D

解説：
"AWS CodeArtifact operates in multiple Availability Zones and stores artifact data and metadata in Amazon S3 and Amazon DynamoDB. Your encrypted data is redundantly stored across multiple facilities and multiple devices in each facility, making it highly available and highly durable." https://aws.amazon.com/codeartifact
/features/ With no internet connectivity, a gateway endpoint becomes necessary to access S3.

質問 # 242
A company has deployed an Amazon Elastic Kubernetes Service (Amazon EKS) cluster with Amazon EC2 node groups. The company's DevOps team uses the Kubernetes Horizontal Pod Autoscaler and recently installed a supported EKS cluster Autoscaler.
The DevOps team needs to implement a solution to collect metrics and logs of the EKS cluster to establish a baseline for performance. The DevOps team will create an initial set of thresholds for specific metrics and will update the thresholds over time as the cluster is used. The DevOps team must receive an Amazon Simple Notification Service (Amazon SNS) email notification if the initial set of thresholds is exceeded or if the EKS cluster Autoscaler is not functioning properly.
The solution must collect cluster, node, and pod metrics. The solution also must capture logs in Amazon CloudWatch.
Which combination of steps should the DevOps team take to meet these requirements? (Select THREE.)

A. Create CloudWatch alarms to monitor the CPU, memory, and node failure metrics of the cluster.
Configure the alarms to send an SNS email notification to the DevOps team if thresholds are exceeded.
B. Create a CloudWatch alarm to monitor the logs of the Autoscaler deployments for errors. Configure the alarm to send an SNS email notification to the DevOps team if thresholds are exceeded.
C. Create a CloudWatch composite alarm to monitor a metric log filter of the CPU, memory, and node metrics of the cluster. Configure the alarm to send an SNS email notification to the DevOps team when anomalies are detected.
D. Deploy AWS Distro for OpenTelemetry to the cluster. Ensure that the EKS cluster has appropriate permissions to send metrics and logs to CloudWatch.
E. Deploy the CloudWatch agent and Fluent Bit to the cluster. Ensure that the EKS cluster has appropriate permissions to send metrics and logs to CloudWatch.
F. Create a CloudWatch alarm to monitor a metric log filter of the Autoscaler deployments for errors.Configure the alarm to send an SNS email notification to the DevOps team if thresholds are exceeded.

正解：A、E、F

解説：
Comprehensive and Detailed Explanation From Exact Extract of DevOps Engineer Documents Only:
Deploy CloudWatch Agent + Fluent Bit (supported by Amazon EKS integration) to forward metrics and logs.
Create CloudWatch Alarms for CPU/memory/node metrics and metric log filters for Autoscaler logs, triggering SNS notifications when anomalies occur. This pattern matches AWS guidance on "Monitoring EKS clusters with CloudWatch Container Insights and alarms."

質問 # 243
A DevOps engineer is working on a project that is hosted on Amazon Linux and has failed a security review. The DevOps manager has been asked to review the company buildspec. yaml die for an AWS CodeBuild project and provide recommendations. The buildspec. yaml file is configured as follows:

What changes should be recommended to comply with AWS security best practices? (Select THREE.)

A. Move the environment variables to the 'db.-deploy-bucket 'Amazon S3 bucket, add a prebuild stage to download then export the variables.
B. Add a post-build command to remove the temporary files from the container before termination to ensure they cannot be seen by other CodeBuild users.
C. Use AWS Systems Manager run command versus sec and ssh commands directly to the instance.
D. Update the CodeBuild project role with the necessary permissions and then remove the AWS credentials from the environment variable.
E. Store the db_password as a SecureString value in AWS Systems Manager Parameter Store and then remove the db_password from the environment variables.

正解：C、D、E

解説：
B) Update the CodeBuild project role with the necessary permissions and then remove the AWS credentials from the environment variable.
C) Store the DB_PASSWORD as a SecureString value in AWS Systems Manager Parameter Store and then remove the DB_PASSWORD from the environment variables.
E) Use AWS Systems Manager run command versus scp and ssh commands directly to the instance.

質問 # 244
A company is using AWS Organizations and wants to implement a governance strategy with the following requirements:
AWS resource access is restricted to the same two Regions for all accounts.
AWS services are limited to a specific group of authorized services for all accounts.
Authentication is provided by Active Directory.
Access permissions are organized by job function and are identical in each account.
Which solution will meet these requirements?

A. Establish a service control policy (SCP) in the management account to restrict Regions and authorized services. Use AWS CloudFormation StackSets to provision roles with permissions for each job function, including an IAM trust policy for IAM identity provider authentication in each account.
B. Establish a permission boundary in the management account to restrict Regions and authorized services. Use AWS CloudFormation StackSets to provision roles with permissions for each job function, including an IAM trust policy for IAM identity provider authentication in each account.
C. Establish an organizational unit (OU) with group policies in the management account to restrict Regions and authorized services. Use AWS CloudFormation StackSets to provision roles with permissions for each job function, including an IAM trust policy for IAM identity provider authentication in each account.
D. Establish a service control policy in the management account to restrict Regions and authorized services. Use AWS Resource Access Manager (AWS RAM) to share management account roles with permissions for each job function, including AWS IAM Identity Center for authentication in each account.

正解：A

解説：
This is a classic AWS Organizations governance design:
Restrict Regions and allowed services across all accounts
The correct Organizations mechanism for account-wide guardrails is a Service Control Policy (SCP).
SCPs set the maximum permissions that accounts/OUs can use, making them the right tool to enforce "only these Regions" and "only these services" consistently across the org.
Authentication from Active Directory + consistent job-function roles in every account With AD as the identity source, the standard approach is federation to AWS using an IAM identity provider (SAML) and role assumption based on job function.
AWS CloudFormation StackSets is the operationally efficient way to deploy identical IAM roles/policies into multiple accounts/OUs so job-function permissions are consistent everywhere.
The roles' trust policies can be configured to allow federated identities (from the AD-backed IdP) to assume the correct job role in each account.
Why the other options don't fit:
A "OU with group policies" isn't an AWS Organizations control mechanism for restricting Regions/services. The AWS-native control for this is SCPs, not "group policies." B Permissions boundaries are useful to limit what an IAM principal/role can do within an account, but they are not the org-wide enforcement mechanism for "all accounts must stay in these Regions / use only these services." That's what SCPs do.

質問 # 245
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