AWS Certified DevOps Engineer - Professional (DOP-C01): DOP-C01

A Developer is designing a continuous deployment workflow for a new Development team to facilitate the process for source code promotion in AWS. Developers would like to store and promote code for deployment from development to

production while maintaining the ability to roll back that deployment if it fails.

Which design will incur the LEAST amount of downtime?

A. Create one repository in AWS CodeCommit. Create a development branch to hold merged changes. Use AWS CodeBuild to build and test the code stored in the development branch triggered on a new commit. Merge to the master and deploy to production by using AWS CodeDeploy for a blue/green deployment.

B. Create one repository for each Developer in AWS CodeCommit and another repository to hold the production code. Use AWS CodeBuild to merge development and production repositories, and deploy to production by using AWS CodeDeploy for a blue/green deployment.

C. Create one repository for development code in AWS CodeCommit and another repository to hold the production code. Use AWS CodeBuild to merge development and production repositories, and deploy to production by using AWS CodeDeploy for a blue/green deployment.

D. Create a shared Amazon S3 bucket for the Development team to store their code. Set up an Amazon CloudWatch Events rule to trigger an AWS Lambda function that deploys the code to production by using AWS CodeDeploy for a blue/ green deployment.

What is web identity federation?

A. Use of an identity provider like Google or Facebook to become an AWS IAM User.

B. Use of an identity provider like Google or Facebook to exchange for temporary AWS security credentials.

C. Use of AWS IAM User tokens to log in as a Google or Facebook user.

D. Use of AWS STS Tokens to log in as a Google or Facebook user.

A DevOps team manages an API running on-premises that serves as a backend for an Amazon API Gateway endpoint. Customers have been complaining about high response latencies, which the development team has verified using the API Gateway latency metrics in Amazon CloudWatch. To identify the cause, the team needs to collect relevant data without introducing additional latency.

Which actions should be taken to accomplish this? (Choose two.)

A. Install the CloudWatch agent server side and configure the agent to upload relevant logs to CloudWatch.

B. Enable AWS X-Ray tracing in API Gateway, modify the application to capture request segments, and upload those segments to X-Ray during each request.

C. Enable AWS X-Ray tracing in API Gateway, modify the application to capture request segments, and use the X-Ray daemon to upload segments to X-Ray.

D. Modify the on-premises application to send log information back to API Gateway with each request.

E. Modify the on-premises application to calculate and upload statistical data relevant to the API service requests to CloudWatch metrics.