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Amazon DOP-C01 Online Practice Questions and Exam Preparation

DOP-C01 Exam Details

  • Exam Code
    :DOP-C01
  • Exam Name
    :AWS Certified DevOps Engineer - Professional (DOP-C01)
  • Certification
    :Amazon Certifications
  • Vendor
    :Amazon
  • Total Questions
    :559 Q&As
  • Last Updated
    :Dec 22, 2024

Amazon DOP-C01 Online Questions & Answers

  • Question 421:

    A company wants to use AWS Systems Manager documents to bootstrap physical laptops for developers. The bootstrap code is stored in GitHub. A DevOps engineer has already created a Systems Manager activation, installed the Systems Manager agent with the registration code, and installed an activation ID on all the laptops.

    Which set of steps should be taken next?

    A. Configure the Systems Manager document to use the AWS-RunShellScript command to copy the files from GitHub to Amazon S3, then use the aws-downloadContent plugin with a sourceType of S3.
    B. Configure the Systems Manager document to use the aws-configurePackage plugin with an install action and point to the Git repository.
    C. Configure the Systems Manager document to use the aws-downloadContent plugin with a sourceType of GitHub and sourceInfo with the repository details.
    D. Configure the Systems Manager document to use the aws:softwareInventory plugin and run the script from the Git repository.

  • Question 422:

    A development team manages website deployments using AWS CodeDeploy blue/green deployments. The application is running on Amazon EC2 instances behind an Application Load Balancer in an Auto Scaling group.

    When deploying a new revision, the team notices the deployment eventually falls, but it takes a long time to fail. After further inspection, the team discovers the AllowTraffic lifecycle event ran for an hour and eventually failed without providing any other information. The team wants to ensure failure notices are delivered more quickly while maintaining application availability even upon failure.

    Witch combination of actions should be taken to meet these requirements? (Choose two.)

    A. Change the deployment configuration to CodeDeployDefaultAllAtOnce to speed up the deployment process by deploying to all of the instances at the same time.
    B. Create a CodeDeploy trigger for the deployment failure event and make the deployment fail as soon as a single health check failure is detected.
    C. Reduce the HealthCheckIntervalSeconds and UnhealthyThresholdCount values within the target group health checks to decrease the amount of time it takes for the application to be considered unhealthy.
    D. Use the appspec.yml file to run a script on the AllowTraffic hook to perform lighter health checks on the application instead of making CodeDeploy wait for the target group health checks to pass.
    E. Use the appspec,yml file to run a script on the BeforeAllowTraffic hook to perform hearth checks on the application and fail the deployment it the health checks performed by the script are not successful.

  • Question 423:

    A DevOps engineer used an AWS CloudFormation custom resource to set up AD Connector. The AWS Lambda function executed and created AD Connector, but CloudFormation is not transitioning from CREATE_IN_PROGRESS to CREATE_COMPLETE.

    Which action should the engineer take to resolve this issue?

    A. Ensure the Lambda function code has exited successfully.
    B. Ensure the Lambda function code returns a response to the pre-signed URL.
    C. Ensure the Lambda function IAM role has cloudformation:UpdateStack permissions for the stack ARN.
    D. Ensure the Lambda function IAM role has ds:ConnectDirectory permissions for the AWS account.

  • Question 424:

    You run operations for a company that processes digital wallet payments at a very high volume. One second of downtime, during which you drop payments or are otherwise unavailable, loses you on average USD 100. You balance the financials of the transaction system once per day.

    Which database setup is best suited to address this business risk?

    A. A multi-AZ RDS deployment with synchronous replication to multiple standbys and read-replicas for fast failover and ACID properties.
    B. A multi-region, multi-master, active-active RDS configuration using database-level ACID design principles with database trigger writes for replication.
    C. A multi-region, multi-master, active-active DynamoDB configuration using application control-level BASE design principles with change-stream write queue buffers for replication.
    D. A multi-AZ DynamoDB setup with changes streamed to S3 via AWS Kinesis, for highly durable storage and BASE properties.

  • Question 425:

    What is the purpose of a Docker swarm worker node?

    A. scheduling services
    B. service swarm node HTTP API endpoints
    C. executing containers
    D. maintaining cluster state

  • Question 426:

    A DevOps Engineer at a startup cloud-based gaming company has the task of formalizing deployment strategies. The strategies must meet the following requirements:

    1.

    Use standard Git commands, such as git clone and git push for the code repository.

    2.

    Management tools should maximize the use of platform solutions where possible.

    3.

    Deployment packages must be immutable and in the form of Docker images.

    How can the Engineer meet these requirements?

    A. Use AWS CodePipeline to trigger a build process when software is pushed to a self-hosted GitHub repository. CodePipeline will use a Jenkins build server to build new Docker images. CodePipeline will deploy into a second target group in Amazon ECS behind an Application Load Balancer. Cutover will be managed by swapping the listener rules on the Application Load Balancer.
    B. Use AWS CodePipeline to trigger a build process when software is pushed to a private GitHub repository. CodePipeline will use AWS CodeBuild to build new Docker images. CodePipeline will deploy into a second target group in Amazon ECS behind an Application Load Balancer. Cutover will be managed by swapping the listener rules on the Application Load Balancer.
    C. Use a Jenkins pipeline to trigger a build process when software is pushed to a private GitHub repository. AWS CodePipeline will use AWS CodeBuild to build new Docker images. CodePipeline will deploy into a second target group in Amazon ECS behind an Application Load Balancer. Cutover will be managed by swapping the listener rules on the Application Load Balancer.
    D. Use AWS CodePipeline to trigger a build process when software is pushed to an AWS CodeCommit repository. CodePipeline will use an AWS CodeBuild build server to build new Docker images. CodePipeline will deploy into a second target group in a Kubernetes Cluster hosted on Amazon EC2 behind an Application Load Balancer. Cutover will be managed by swapping the listener rules on the Application Load Balancer.

  • Question 427:

    A company is deploying a new application using Amazon EC2 instances. The company wants to maintain a centralized application and Amazon API logs that can be queried using one tool or service.

    Which solution will meet these requirements?

    A. Use the Amazon CloudWatch agent to send logs from the Amazon EC2 instances to CloudWatch. Configure AWS CloudTrail to deliver the API logs to CloudWatch and use Amazon Athena to query both log sets in CloudWatch.
    B. Use the Amazon CloudWatch agent to send logs from the Amazon EC2 instances to CloudWatch. Configure an Amazon Kinesis Data Firehouse log group subscription to send those logs to Amazon S3. Use AWS CloudTrail to deliver the API logs to Amazon S3. Use Amazon Athena to query both log sets in Amazon S3.
    C. Use the Amazon CloudWatch agent to send logs from the Amazon EC2 instances to Amazon Kinesis. Configure AWS CloudTrail to deliver the API logs to Kinesis. Use Amazon to load the data into Amazon Redshift and use Amazon Redshift to query both log sets.
    D. Use the Amazon CloudWatch agent to send logs from the Amazon EC2 instances to Amazon S3. Use Amazon CloudTrail to deliver the API logs to Amazon S3 and use Amazon Redshift to query both log sets in Amazon S3.

  • Question 428:

    You need to run a very large batch data processing job one time per day. The source data exists entirely in S3, and the output of the processing job should also be written to S3 when finished. If you need to version control this processing job and all setup and teardown logic for the system, what approach should you use?

    A. Model an AWS EMR job in AWS Elastic Beanstalk.
    B. Model an AWS EMR job in AWS CloudFormation.
    C. Model an AWS EMR job in AWS OpsWorks.
    D. Model an AWS EMR job in AWS CLI Composer.

  • Question 429:

    A company has a single Developer writing code for an automated deployment pipeline. The Developer is storing source code in an Amazon S3 bucket for each project. The company wants to add more Developers to the team but is concerned about code conflicts and lost work. The company also wants to build a test environment to deploy newer versions of code for testing and allow Developers to automatically deploy to both environments when code is changed in the repository.

    What is the MOST efficient way to meet these requirements?

    A. Create an AWS CodeCommit repository for each project, use the master branch for production code, and create a testing branch for code deployed to testing. Use feature branches to develop new features and pull requests to merge code to testing and master branches.
    B. Create another S3 bucket for each project for testing code, and use an AWS Lambda function to promote code changes between testing and production buckets. Enable versioning on all buckets to prevent code conflicts.
    C. Create an AWS CodeCommit repository for each project, and use the master branch for production and test code with different deployment pipelines for each environment. Use feature branches to develop new features.
    D. Enable versioning and branching on each S3 bucket, use the master branch for production code, and create a testing branch for code deployed to testing. Have Developers use each branch for developing in each environment.

  • Question 430:

    An Amazon EC2 instance with no internet access is running in a Virtual Private Cloud (VPC) and needs to download an object from a restricted Amazon S3 bucket. When the DevOps Engineer tries to gain access to the object, an

    AccessDenied error is received.

    What are the possible causes for this error? (Choose three.)

    A. The S3 bucket default encryption is enabled.
    B. There is an error in the S3 bucket policy.
    C. There is an error in the VPC endpoint policy.
    D. The object has been moved to Amazon Glacier.
    E. There is an error in the IAM role configuration.
    F. S3 versioning is enabled.

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