SDLC Automation

A team uses AWS CloudFormation to manage infrastructure. They want to deploy a stack that creates an S3 bucket and a DynamoDB table. The S3 bucket name must be unique across all AWS accounts. Which CloudFormation intrinsic function should be used to generate a unique bucket name?

A company runs a critical e-commerce application on AWS. They use AWS CodePipeline to manage deployments. The pipeline has a source stage (CodeCommit), a build stage (CodeBuild), and a deploy stage (CodeDeploy to an Auto Scaling group). Recently, a deployment caused a 5-minute outage because the new application version had a bug that caused the health checks to fail. The Auto Scaling group marked instances as unhealthy and replaced them, but during the replacement, traffic was routed to the remaining instances, which also failed health checks, causing a full outage. The company wants to implement a deployment strategy that prevents any traffic from being routed to unhealthy instances and automatically rolls back if the deployment fails. They also want to minimize deployment time and cost. Which solution should the DevOps team implement?

A company uses AWS CodePipeline to automate the deployment of a static website hosted on Amazon S3. The pipeline includes a source stage that pulls from a CodeCommit repository and a deploy stage that uses CodeBuild to sync the files to an S3 bucket. The team noticed that the website is not updating after a successful pipeline run. The CodeBuild logs show that the 'aws s3 sync' command completed successfully. However, the website still shows the old content. What is the MOST likely cause?

A company uses AWS CloudFormation to manage a stack that includes an Amazon SQS queue. The queue name must be unique. The developer wants to define the queue name in the CloudFormation template. Which intrinsic function should be used to generate a unique name?

A company uses AWS CodeBuild to compile and test their Java application. The build takes about 20 minutes. They have enabled Amazon S3 cache to store the Maven repository to speed up subsequent builds. However, they notice that the build time has not improved significantly. The buildspec file includes the 'cache' section with 'paths' pointing to '/root/.m2'. The CodeBuild project has cache type set to 'S3' and a valid bucket. The build logs show that the cache is being downloaded and uploaded, but the Maven dependencies are still being downloaded from the internet each time. What is the most likely cause?

Which THREE factors should be considered when designing a deployment strategy using AWS CodeDeploy to minimize downtime during updates? (Choose three.)

A company uses AWS CodePipeline with a GitHub source action. The pipeline is configured to trigger on changes to the main branch. After a recent commit, the pipeline did not trigger. The DevOps engineer verified that the webhook is configured correctly and the IAM role has the necessary permissions. What is the most likely cause?

A company is using AWS CodeDeploy to deploy a web application to an Auto Scaling group. The deployment fails with the error 'The overall deployment failed because too many individual instances failed deployment, too few healthy instances are available, or some instances in your deployment group are experiencing problems.' The deployment configuration uses a linear traffic shifting with a 10-minute interval. The application logs show that the new version of the application crashes on startup. What is the MOST effective way to handle this situation to ensure successful future deployments?

Refer to the exhibit. A developer is troubleshooting a failed AWS CodeBuild build. The buildspec file contains the following build commands: 'pre_build' - run linting, 'build' - './gradlew build', 'post_build' - package artifact. The error occurs in the build phase. Which of the following is the MOST likely cause?

A company uses AWS CodeBuild to run builds for a Java application. The buildspec includes a 'mvn test' command. The build succeeds but the tests fail. The team wants to fail the build if any test fails. What should they do?

Refer to the exhibit. A DevOps engineer ran the above AWS CLI command after a CloudFormation stack update. What does the status 'ROLLBACK_COMPLETE' indicate?

Refer to the exhibit. A CodePipeline deployment fails at the CloudFormation stage. The Lambda function creation is cancelled. What is the MOST likely cause?

A DevOps engineer is designing a CI/CD pipeline for a Python application using AWS CodeBuild and AWS CodeDeploy. The application is deployed to an Auto Scaling group of EC2 instances. The engineer wants to ensure that the deployment does not impact availability. Which TWO strategies can be used? (Choose 2.)

A company uses AWS CodePipeline with multiple stages: Source (CodeCommit), Build (CodeBuild), Test (CodeBuild), and Deploy (CodeDeploy to EC2). The Test stage runs integration tests that require network access to a private database in a VPC. The CodeBuild project is configured to use a VPC. However, the Test stage fails intermittently with timeout errors. Which TWO actions would MOST likely resolve the issue? (Choose 2)

Which TWO actions should a DevOps engineer take to implement a CI/CD pipeline that automatically deploys a containerized application to Amazon ECS using AWS CodePipeline and AWS CodeBuild? (Choose TWO.)

A company uses AWS CodeCommit for source control. Developers need to automatically run tests on every push to a feature branch, but only if the push includes changes to the 'src/' directory. Which TWO AWS services can be used together to achieve this?

A company runs a microservices architecture on Amazon ECS with Fargate launch type. Each microservice is deployed using AWS CodePipeline with a source stage from CodeCommit, a build stage in CodeBuild, and a deploy stage that updates the ECS service. The team wants to implement a blue/green deployment strategy to reduce downtime and enable quick rollbacks. Which combination of AWS services and configurations should be used?

A DevOps team is designing a deployment pipeline for a microservices application on Amazon ECS using AWS CodePipeline. They want to implement a canary deployment strategy where a small percentage of traffic is routed to the new version before fully promoting it. Which AWS service or feature should they use to achieve this?

Which THREE actions should a DevOps team take to ensure a CI/CD pipeline using AWS CodePipeline is secure? (Choose three.)

A team uses AWS CodePipeline with multiple stages: Source, Build, Test, and Deploy. The Test stage runs integration tests against a staging environment. Occasionally, the tests fail due to environment issues, not code issues. The team wants to automatically retry the Test stage up to two times if it fails, but not the Deploy stage. How can this be achieved?

A company uses AWS CodeDeploy to deploy a web application to an Auto Scaling group of Amazon EC2 instances. The deployment fails with the error 'The overall deployment failed because too many individual instances failed deployment, too few healthy instances are available for deployment, or some instances in your deployment group are experiencing problems.' The application is deployed to the instances using an in-place deployment. The instances are running Amazon Linux 2. What should the DevOps engineer check first?

A company wants to implement a CI/CD pipeline for an application that runs on Amazon ECS with Fargate. The pipeline should build a Docker image, push it to Amazon ECR, and deploy a new task definition to ECS. Which THREE AWS services are required to build this pipeline?

Which TWO best practices should be followed when configuring AWS CodeBuild projects to improve build performance and security? (Choose TWO.)

A large enterprise uses a multi-account AWS strategy with a centralized DevOps account. The DevOps account hosts an AWS CodePipeline that deploys a critical application to production account (111111111111) using AWS CodeDeploy. The pipeline has three stages: Source (CodeCommit), Build (CodeBuild), and Deploy (CodeDeploy). The deploy stage uses a cross-account role (arn:aws:iam::111111111111:role/CrossAccountDeployRole) to perform the deployment. The trust policy on that role allows the DevOps account's CodePipeline service role (arn:aws:iam::222222222222:role/CodePipelineServiceRole) to assume it. The pipeline has been working for months, but after a recent security audit, the security team tightened permissions. Now the deploy stage fails with the error: 'User: arn:aws:sts::222222222222:assumed-role/CodePipelineServiceRole/AWS-CodePipeline-xxx is not authorized to perform: codedeploy:CreateDeployment on resource: arn:aws:codedeploy:us-east-1:111111111111:deploymentgroup:MyApp/MyDG'. The DevOps team has verified that the CrossAccountDeployRole has a permissions policy that allows 'codedeploy:*' on all resources. The CodePipelineServiceRole has a permissions policy that allows 'sts:AssumeRole' on the CrossAccountDeployRole. What is the most likely cause and what action should be taken to resolve the issue?

An organization uses AWS CodePipeline with multiple stages: Source, Build, Test, and Deploy. The Test stage runs integration tests in CodeBuild. Recently, the pipeline failed because the Test stage took longer than expected, causing a pipeline execution timeout. The pipeline has a default timeout of 7 days. What is the MOST efficient way to set a maximum execution time for the Test stage without affecting other stages?

Refer to the exhibit. After a deployment at 10:00, the error rate increases steadily. What is the MOST likely cause?

A team uses AWS CodeBuild to build a Node.js application. The buildspec.yml file is at the root of the repository. The build fails with 'Error: Cannot find module 'aws-sdk''. Which TWO actions could resolve the issue? (Choose TWO.)

A development team uses AWS CodeCommit for source control and wants to automatically run unit tests on every push to the main branch. Which AWS service should they use to trigger the tests?

A company uses AWS Elastic Beanstalk for deploying web applications. They want to automate deployments whenever a new commit is pushed to the master branch of their CodeCommit repository. Which AWS service should they use to trigger the deployment?

A DevOps team uses AWS CodeBuild to compile a Java application. The build environment is managed by AWS and runs on Linux. The team wants to speed up the build process by caching dependency directories across builds. Which configuration should the team use?

A company is using AWS CodeBuild to compile and test code. The buildspec.yml file includes a pre_build phase that installs dependencies and a build phase that runs the compilation. The tests are run in the post_build phase. The team wants to improve the security of the build process by ensuring that sensitive information such as database passwords is not exposed in the build logs. Which TWO actions should the team take? (Choose two.)

A development team uses AWS CodeCommit as a source repository for their AWS CodePipeline. They want to automatically trigger a pipeline execution when a new branch is created. Which solution should they implement?

The exhibit shows the output of the AWS CLI command 'batch-get-builds' for a CodeBuild build. The build failed. What is the most likely cause of the failure?

A company uses AWS CodePipeline with an Amazon S3 source action. The pipeline deploys to an Amazon ECS Fargate service. The engineer notices that the pipeline does not automatically start when a new object is uploaded to the S3 bucket. The S3 bucket versioning is enabled. What is the most likely cause?

Which TWO options are valid ways to trigger an AWS CodePipeline execution automatically? (Choose two.)

A DevOps engineer is setting up an AWS CodeBuild project to build a Node.js application. The buildspec.yml file includes a pre_build phase that runs npm install and a build phase that runs npm run build. The build is failing with an error indicating that the 'node' command is not found. The CodeBuild project uses a standard Ubuntu image with the 'aws/codebuild/standard:5.0' image. What is the most likely cause of the failure?

Refer to the exhibit. A CloudFormation stack has been deployed. A developer wants to use the S3 bucket name in a subsequent AWS CLI command. Which command will correctly retrieve the bucket name?

A DevOps team is designing a CI/CD pipeline for a microservices application that runs on Amazon ECS. They need to implement automated canary deployments. Which TWO AWS services would be essential for this implementation?

A development team uses AWS CodeBuild to compile a Java application. The build fails during the 'Install' phase with an error: 'Error: JAVA_HOME is not set'. How should the team fix this?

A company uses AWS CodePipeline to automate deployments. The pipeline consists of Source, Build, and Deploy stages. The Build stage uses CodeBuild, and the Deploy stage uses CodeDeploy. Recently, the pipeline failed at the Deploy stage with an error: 'The deployment group does not exist'. Which TWO actions should the team take to resolve this issue?

A company uses AWS CodePipeline with multiple stages: Source (Amazon S3), Build (AWS CodeBuild), and Deploy (AWS CodeDeploy). The build stage runs a series of tests, and if they pass, the pipeline proceeds to deploy. Recently, a developer committed a change that passed all tests but caused a production outage. The team wants to add an approval step before the deploy stage, but they also want to ensure that only changes from specific branches can be deployed. What is the MOST secure and maintainable way to enforce this?

A DevOps engineer is setting up an AWS CodePipeline for a serverless application. The source code is in AWS CodeCommit, and the build and deploy stages use AWS CodeBuild and AWS CloudFormation respectively. The engineer wants to ensure that the pipeline automatically creates a new stack for each feature branch and deletes the stack when the branch is deleted. Which combination of actions should the engineer take to achieve this with minimal operational overhead?

A development team uses AWS CodeBuild to compile a Java application and run unit tests. The build takes 30 minutes, but the team wants to reduce build time. The codebase has not changed significantly, and dependencies are stable. Which action would be MOST effective in reducing build time?

An organization uses AWS CodePipeline with multiple stages: Source, Build, Deploy to Test, Deploy to Prod. They want to implement a canary deployment strategy for the production deployment. Which approach should they use?

A team uses AWS CodePipeline to deploy a microservices application. The pipeline has a deploy action that uses AWS CloudFormation. The CloudFormation template creates an Amazon ECS service. The deployment fails because the ECS service cannot be updated. What is the most likely cause?

A team uses AWS CodeDeploy to deploy an application to an Auto Scaling group. The deployment fails with the error: 'The overall deployment failed because too many individual instances failed deployment.' The instances are healthy and can connect to the CodeDeploy service. What is the most likely cause?

A company uses AWS CodePipeline to deploy a static website to an S3 bucket. The pipeline includes a source stage (S3), a build stage (CodeBuild) that minifies assets, and a deploy stage that copies files to the production S3 bucket. The deploy stage uses 's3 sync' command. After a recent deployment, some users report seeing old content. What is the MOST likely cause?

A company uses AWS CodeCommit for source control. Developers frequently push large binary files (e.g., compiled JARs) to the repository, causing the repository size to grow rapidly and slowing down clone operations. The team wants to enforce a policy to reject pushes that contain files larger than 50 MB. Which approach should be used?

A DevOps engineer is troubleshooting a failed build in AWS CodeBuild. The build log shows: 'Error: Cannot find module 'lodash'.' The buildspec.yml file lists 'npm install' as a command. What is the most likely cause?

A company is using AWS CodeDeploy to deploy a web application to an Auto Scaling group of Amazon EC2 instances. The deployment strategy is Blue/Green. After a successful deployment, the team notices that the new instances are receiving traffic but the application returns errors. The old instances are still serving traffic correctly. The team wants to roll back immediately. What should be done?

An organization uses AWS CodePipeline to deploy a web application to Amazon EC2 instances behind an Application Load Balancer. The deployment uses a CodeDeploy action with an in-place deployment configuration. After a recent deployment, some instances are running the old version while others are running the new version. What is the most likely cause?

A DevOps engineer needs to automate the creation of a new AWS CodeCommit repository when a new project starts. The engineer wants to use infrastructure as code. Which service should be used?

A team wants to run a CodeBuild project that builds a container image and pushes it to Amazon ECR, but the build currently fails with an access denied error when calling ecr:InitiateLayerUpload. The CodeBuild project uses a service role and runs in a VPC. Which TWO actions should the engineer take to resolve the error while keeping the build functional? (Choose two.)

Which THREE AWS services can be used as a source action in AWS CodePipeline? (Choose three.)

A DevOps engineer is designing a CI/CD pipeline for a serverless application using AWS Lambda and Amazon API Gateway. The team wants to automate deployment across multiple environments (dev, test, prod) with environment-specific configuration. Which approach should the engineer use?

A company uses AWS CodePipeline to deploy a serverless application. The pipeline has a source stage (CodeCommit), a build stage (CodeBuild), and a deploy stage (CloudFormation). The deployment consistently fails because the Lambda function's IAM role is not created before the function. The team uses a single CloudFormation template. Which action should be taken to resolve this dependency issue?

A company uses AWS Systems Manager Automation to patch EC2 instances. The automation document 'AWS-RunPatchBaseline' runs successfully but some instances are not patched because they are not managed by Systems Manager. What is the most likely reason?

A startup is using AWS CodeBuild to build and test their application. The build process takes about 10 minutes. Recently, they noticed that some builds are failing randomly with the error 'Could not download dependencies'. The build environment uses a custom Docker image stored in Amazon ECR. The team suspects that the issue is due to network connectivity problems when pulling the Docker image or dependencies from the internet. They want to ensure reliable and faster builds. Which solution should they implement?

A DevOps engineer is designing a CI/CD pipeline for a serverless application using AWS Lambda. They want to automatically deploy the latest version of the Lambda function to production after running integration tests. The source code is in AWS CodeCommit. Which pipeline configuration should they use?

A DevOps engineer is setting up a CI/CD pipeline using AWS CodePipeline and AWS CodeBuild. The build environment requires specific software packages that are not available in the default CodeBuild environment. What is the MOST efficient way to customize the build environment?

A company uses AWS CodePipeline with a manual approval stage before deploying to production. The approval notification is sent via Amazon SNS. The approvers report that they are not receiving the email notifications. What should the DevOps engineer check first?

A company uses AWS CloudFormation to provision infrastructure. They have a stack that creates an Amazon RDS DB instance. They want to update the stack to change the DB instance class from db.t2.micro to db.t3.medium. Which THREE of the following must be true for the update to succeed? (Choose three.)

A company is using AWS CodeBuild to run integration tests. The tests require access to an Amazon RDS instance in a private subnet. The CodeBuild project is configured with a VPC ID, subnet IDs, and security group IDs. However, the tests fail with a connection timeout. What is the MOST likely cause?

An organization uses AWS CodePipeline to orchestrate deployments to multiple environments (dev, test, prod). Each environment uses a different AWS account. The pipeline uses cross-account actions with IAM roles. Recently, the pipeline failed at the deploy stage for the prod account with the error 'Access Denied' when assuming the cross-account role. The role ARN is correct and the trust policy allows the pipeline's service role. What is the MOST likely cause?

A DevOps team is using AWS CodeBuild to run integration tests against a test database. The database is an Amazon RDS instance in a private subnet. The CodeBuild project is configured to run in a VPC. Which THREE steps are required to allow CodeBuild to access the RDS instance?

A team uses AWS CloudFormation to manage infrastructure. They want to automatically update the stack when a new version of a Docker image is pushed to Amazon ECR. Which approach should they use?

An organization uses AWS CloudFormation to manage infrastructure across multiple accounts using AWS Organizations. They want to enforce that all S3 buckets are encrypted with SSE-S3. A DevOps engineer creates a service control policy (SCP) to deny the creation of any S3 bucket without encryption. However, CloudFormation stack creation fails with an access denied error even when the template includes encryption. What is the most likely cause?

An organization uses AWS CodeDeploy to deploy applications to Amazon EC2 instances. The deployment is failing consistently with the error 'ScriptMissing' for the AppSpec lifecycle hook 'ApplicationStop'. The scripts are located in the /opt/scripts directory on the instances. What is the most likely cause of this error?

Refer to the exhibit. A DevOps engineer runs the command to get the pipeline definition. The pipeline has a source stage from an S3 bucket and a build stage with CodeBuild. The CodeBuild project is configured to output artifacts to a specific S3 bucket. However, the pipeline fails at the build stage with an error: 'Artifact 'BuildArtifact' is not found'. What is the most likely cause?

A DevOps team uses AWS CodeBuild to compile code and run unit tests. The team notices that builds are failing with a timeout error after 60 minutes. What is the most likely cause and solution?

Your company uses AWS CodePipeline to automate the deployment of a critical web application. The pipeline consists of a source stage (CodeCommit), a build stage (CodeBuild), and a deploy stage (CodeDeploy) that deploys to an Auto Scaling group of EC2 instances running Amazon Linux 2. The deployment strategy is 'AllAtOnce'. Recently, the team noticed that during deployments, the application becomes completely unavailable for a few minutes until the new instances are registered with the load balancer. The business requires zero downtime during deployments. You need to modify the deployment process to achieve zero downtime while minimizing cost and complexity. The Auto Scaling group currently has a minimum of 2 instances and a maximum of 4 instances. The application is stateless and sessions are stored in ElastiCache. Which solution should you implement?

A company uses AWS CodeBuild to run unit tests and package a Node.js application. The buildspec.yml file includes commands to install dependencies using npm. The build is failing with the error: 'npm ERR! code EACCES'. How should a DevOps engineer resolve this issue?

A developer is setting up AWS CodeBuild to compile a Go application. The build fails with the error: 'go: command not found'. What is the MOST likely cause?

A company uses AWS CodeBuild to run unit tests as part of a CI pipeline. The buildspec.yaml file is located in the root of the source repository. The build takes 30 minutes to complete. The team wants to speed up the build by caching dependencies. Which approach should they take?

A DevOps engineer wants to automate the creation and cleanup of temporary development environments on AWS. Each environment consists of an Amazon EC2 instance and an Amazon RDS database. The environments should be isolated and cost-effective. Which AWS service is best suited for this?

Refer to the exhibit. The above IAM policy is attached to an IAM role used by a CI/CD pipeline. Which action is this policy allowing?

Which THREE actions can be performed using the AWS CLI for CodeDeploy? (Choose three.)

An organization uses AWS CodeBuild to compile a Java application. The buildspec.yml includes a pre_build phase that runs unit tests. Recently, the build started failing with 'NoClassDefFoundError' for certain test dependencies, even though the pom.xml includes them. The build environment uses an Amazon Linux 2 Docker image. What is the MOST likely cause?

A DevOps team uses AWS CodePipeline to deploy a static website to Amazon S3. The pipeline has a source stage from CodeCommit, a build stage using CodeBuild that generates the website files, and a deploy stage that copies files to an S3 bucket. The team wants to add a manual approval step before the deploy stage. What should the engineer do?

A DevOps engineer needs to automate the creation of a CI/CD pipeline using infrastructure as code. Which AWS service is BEST suited to define and provision the pipeline resources?

A development team uses AWS CodeStar to set up a continuous delivery pipeline for a web application. The application is deployed to an Elastic Beanstalk environment. After a successful deployment, the team wants to automatically run integration tests against the deployed application. What is the SIMPLEST way to achieve this?

A company uses AWS CodeBuild to run unit tests and package a Java application. The build process takes 15 minutes. The team wants to reduce build time by caching dependencies. Which approach should the engineer recommend?

A company uses AWS CodePipeline to deploy a static website to Amazon S3 and CloudFront. The pipeline currently uses CodeBuild to run tests and then deploys to an S3 bucket. The team wants to add a stage that invalidates the CloudFront cache after deployment. Which TWO actions achieve this?

A DevOps team uses AWS CloudFormation with nested stacks. They are experiencing stack update failures because changes to a nested stack cause resource conflicts. Which THREE best practices should they follow to manage nested stack updates? (Choose THREE.)

A company uses AWS CodePipeline with multiple stages: source, build, test, and deploy. The test stage takes 45 minutes to complete. Developers complain that the pipeline takes too long to provide feedback. The team wants to run tests in parallel across multiple environments. Which approach should be taken to reduce the pipeline execution time?

A company uses AWS Elastic Beanstalk to deploy a web application. The deployment fails with a '502 Bad Gateway' error. The developer checks the logs and sees that the application is running but returns errors. The environment uses a load balancer. What is the MOST likely cause?

A DevOps team uses AWS CodePipeline with an S3 source action and CodeBuild as a build provider. The pipeline has a manual approval step before deployment. Recently, the team noticed that the pipeline automatically starts when a new object is uploaded to the S3 bucket, even if the object is not the source code. They want to ensure that the pipeline only triggers on changes to the source code directory. What is the MOST efficient solution?

A company uses AWS CloudFormation to manage infrastructure. They want to update a stack but need to ensure that critical database resources are not accidentally replaced during the update. What is the BEST way to protect these resources?

A company uses AWS CodeDeploy to deploy an application to an Auto Scaling group. The deployment fails with the error 'The overall deployment failed because too many individual instances failed deployment, too few healthy instances are available for deployment, or some instances in your deployment group are experiencing problems.' The deployment is set to 'AllAtOnce'. The application revision is a simple index.html. What is the most likely cause?

A DevOps team uses AWS CodeDeploy to deploy an application to an Auto Scaling group. The deployment fails with a 'HealthCheckFailed' error. The application is running, but the health check endpoint returns HTTP 500. What should the team do to resolve this issue?

Which THREE practices help ensure the security of a CI/CD pipeline that deploys to production? (Choose three.)

A company is implementing a CI/CD pipeline using AWS CodePipeline. The source code is stored in an AWS CodeCommit repository. The pipeline must automatically start whenever a change is pushed to any branch. Which configuration is required?

Refer to the exhibit. An IAM policy is attached to a CodeBuild service role. The CodeBuild project is used to build code from a CodeCommit repository and output artifacts to an S3 bucket. However, the build fails with an error: 'Unable to download source from CodeCommit'. What is the missing permission?

A company uses AWS CodeCommit and wants to enforce that all commits to the 'main' branch are signed with a GPG key. Which steps should the DevOps engineer take to enforce this?

A DevOps engineer creates a CloudFormation stack with the above template. After creation, they want to update the Lambda function code by uploading a new zip file to the S3 bucket and updating the S3Key property. However, the stack update fails because the Lambda function is published as a version and the alias points to that version. What is the most likely reason for the update failure?

Which TWO AWS services can be used as sources in an AWS CodePipeline? (Choose two.)

A development team uses AWS CodeCommit to store their application code. They want to enforce that all code changes to the main branch are reviewed and approved by at least one other team member before being merged. Which AWS service or feature should they use to implement this requirement?

A DevOps engineer wants to use AWS CodeDeploy to deploy an application to an Auto Scaling group. The deployment must ensure that only a certain percentage of instances are taken out of service at a time. Which deployment configuration supports this requirement?

A DevOps engineer is designing a CI/CD pipeline for a microservices architecture. The pipeline must ensure that only code that passes security scanning can proceed to deployment. Which TWO actions should the engineer take? (Choose TWO.)

A development team uses AWS CodeCommit as a source control repository. A developer accidentally pushed a commit that contains sensitive information (e.g., AWS access keys) to the main branch. The team wants to remove the sensitive data from the repository history completely. Which action should the engineer take?

An organization uses AWS CodePipeline to deploy a web application. The pipeline includes a test stage that runs integration tests using AWS CodeBuild. The tests are flaky and sometimes fail due to external dependencies. The team wants to automatically retry failed tests before marking the stage as failed. How should this be achieved?

A company is implementing a CI/CD pipeline using AWS CodePipeline. The pipeline has a source stage from GitHub, a build stage using AWS CodeBuild, and a deploy stage using AWS Elastic Beanstalk. The team wants to ensure that the pipeline only proceeds if the code quality checks pass and unit tests are successful. Which TWO actions should be taken?

Which TWO AWS services can be used to implement a blue/green deployment for an application running on Amazon EC2 instances?

Refer to the exhibit. A DevOps engineer created a CloudFormation stack that includes a Lambda function. The stack creation failed and rolled back. The error message for the Lambda function says 'Resource creation cancelled'. What is the most likely cause?

A startup is using AWS CodePipeline to deploy a Python web application to AWS Elastic Beanstalk. The pipeline has a source stage (CodeCommit), a build stage (CodeBuild), and a deploy stage (Elastic Beanstalk). The build stage runs unit tests and creates a deployable zip file. The deploy stage uses the Elastic Beanstalk deploy provider. Recently, the deploy stage started failing with the error: 'The API call 'elasticbeanstalk:CreateApplicationVersion' failed with status 403.' The CodePipeline service role has the following permissions: 'elasticbeanstalk:DescribeApplications', 'elasticbeanstalk:DescribeEnvironments', 'elasticbeanstalk:UpdateEnvironment'. What should the DevOps engineer do to resolve the issue?

A DevOps engineer is designing a CI/CD pipeline for a microservices application running on Amazon ECS with Fargate. The team wants to use a blue/green deployment strategy to minimize downtime. Which combination of AWS services and configurations should be used to implement this?

A company uses AWS CodeCommit as a source repository and wants to enforce that all commits are signed using GPG keys. The DevOps team configures a pre-receive hook in CodeCommit to validate commit signatures. However, the hook rejects all commits even when valid GPG signatures are present. What is the most likely cause?

A company runs a standard AWS CodePipeline with a CodeCommit source and a CodeBuild build stage. Compliance requires that every source revision be built with a buildspec that is immutable and shared across all pipelines in the organization; developers must not be able to change build instructions by editing files in the source repository. Which approach enforces this requirement with the least operational overhead?

Which THREE components are required to set up a fully automated CI/CD pipeline for a static website hosted on Amazon S3 using AWS CodePipeline? (Choose THREE.)

Refer to the exhibit. An IAM policy is attached to a CodePipeline service role. When the pipeline tries to start a CodeBuild project, it fails with an 'AccessDenied' error. The CodeBuild project uses a different service role (arn:aws:iam::123456789012:role/CodeBuildServiceRole2). What is the MOST likely cause?

Refer to the exhibit. An IAM policy is attached to a role used by a CI/CD system. The policy is intended to allow starting the pipeline 'MyPipeline' from the same account. However, the CI/CD system receives an 'AccessDenied' error when trying to start the pipeline. What is the problem?

A company uses AWS CodeBuild to compile Java applications. The builds often fail due to insufficient memory. The buildspec currently specifies 'compute-type: BUILD_GENERAL1_SMALL'. What is the most cost-effective solution to resolve the memory issues without changing the build logic?

A development team wants to automate infrastructure provisioning using AWS CloudFormation. Which tool is specifically designed to manage CloudFormation templates as part of a deployment pipeline?

Which TWO actions should a DevOps engineer take to ensure that an AWS CodeBuild project can access a private Amazon S3 bucket to download build artifacts? (Choose two.)

A DevOps engineer is designing a CI/CD pipeline for a microservices architecture. The pipeline must deploy to Amazon ECS using blue/green deployments. The team wants to automatically roll back if the new deployment fails health checks. Which combination of AWS services and configurations should the engineer use?

A company runs a critical application on Amazon EC2 instances behind an Application Load Balancer. The application is deployed using AWS CodeDeploy with an in-place deployment configuration. During a recent deployment, the deployment failed because the new application version caused a health check failure, and CodeDeploy did not automatically roll back. What should the engineer do to ensure automatic rollback on health check failure?

A team uses AWS CodePipeline to deploy a serverless application using AWS SAM. The pipeline includes a build stage that runs 'sam build' and a deploy stage that runs 'sam deploy'. The deployment fails with an error: 'The security token included in the request is invalid.' What is the MOST likely cause?

A company uses AWS CodeDeploy to deploy a web application to an Auto Scaling group. The deployment fails during the 'ValidateService' lifecycle event. The CloudWatch Agent reports that the target process is running but the health check endpoint returns HTTP 503. The CodeDeploy agent logs show no errors. What is the most likely cause of the failure?

A company deploys an AWS CloudFormation stack that creates an Auto Scaling group and a launch template. The team wants every code change merged to the main branch to automatically update the stack, and they want to be able to roll back to the previous stack state if the update fails. Which combination of services should they use?

A development team uses AWS CodePipeline with multiple stages including source, build, and deploy. The pipeline uses an Amazon S3 source action that triggers on changes to a specific bucket. Recently, the pipeline stopped triggering automatically. The IAM role for CodePipeline has the necessary permissions. What is the most likely cause?

A team uses AWS CodePipeline to deploy a containerized application to Amazon ECS. The pipeline uses a source stage from CodeCommit, a build stage that builds a Docker image and pushes it to Amazon ECR, and a deploy stage that updates an ECS service. The team wants to add a manual approval step before the deploy stage to allow QA to verify the image. What is the BEST way to implement this?

You are a DevOps engineer for a company that uses AWS CodePipeline to deploy a microservice to Amazon ECS with Fargate. The pipeline has a source stage (CodeCommit), a build stage (CodeBuild) that builds a Docker image and pushes it to Amazon ECR, and a deploy stage that uses an ECS task definition update. Recently, the deploy stage started failing intermittently with the error 'The task definition does not have a compatibilities attribute set correctly.' The task definition is generated dynamically during the build stage and uses the 'FARGATE' launch type. The error occurs only when a new task definition revision is created. You suspect the issue is related to how the task definition is generated. Upon reviewing the buildspec, you see that the task definition JSON is created using environment variables for the image URI. What is the MOST likely cause and solution?

A DevOps team is designing a CI/CD pipeline for a containerized application. Which THREE components are essential for a complete pipeline? (Choose three.)

A company uses AWS CodePipeline with multiple stages: Source, Build, Test, Deploy. The Test stage runs integration tests using AWS CodeBuild. If the Test stage fails, what happens to the pipeline execution?

Refer to the exhibit. A DevOps engineer runs the above commands. The build project 'my-project' uses an S3 bucket as source and another S3 bucket for artifacts. The build fails with an 'Access Denied' error when trying to download the source code. What is the most likely cause?

Refer to the exhibit. An IAM policy is attached to a user. The user tries to push a commit to the 'develop' branch of 'MyRepo' using Git. What is the outcome?

A company uses AWS CodeCommit for source control. Developers frequently push large binary files, causing the repository size to exceed the recommended limit. What is the most efficient way to manage this situation?

A CodeDeploy deployment group is configured as shown in the exhibit. During a deployment, the deployment fails because the instances are not found. What is the MOST likely reason?

A company uses AWS CodeBuild to compile and test code. The buildspec.yaml includes a pre_build phase that runs 'aws ecr get-login-password --region us-east-1 | docker login --username AWS --password-stdin 123456789012.dkr.ecr.us-east-1.amazonaws.com'. The build fails with 'Error: Cannot connect to the Docker daemon'. What is the most likely cause?

A company uses AWS CodeCommit for source control and wants to enforce that all commits to the main branch are signed. The DevOps team has configured Git commit signing using GPG keys. However, some developers are able to push unsigned commits to main. What should the engineer do to enforce signed commits?

A DevOps team wants to run unit tests in parallel across multiple build environments using AWS CodeBuild. Which build specification configuration allows this?

A DevOps engineer is creating a CodePipeline service role. The above IAM policy is attached to the role. The pipeline fails when trying to download artifacts from the S3 bucket. What is the issue?

A company uses AWS CodeCommit as a Git repository and CodeBuild for continuous integration. The buildspec.yml file includes steps to run unit tests and package the application. The team wants to ensure that only code from the main branch is deployed to production. They have set up a CodePipeline that triggers on changes to any branch. The pipeline includes a build stage that runs CodeBuild, and then a deploy stage that deploys to production. The team noticed that code from feature branches is being deployed to production accidentally. The team wants to modify the pipeline to prevent this. What is the MOST effective solution?

A development team uses AWS CodeBuild to run unit tests on every commit to the develop branch. The tests take a long time because they download dependencies each time. What should the team do to reduce build time?

An organization uses AWS CodePipeline with a multi-branch strategy. They want to run unit tests on every push to any branch, but only deploy to production on pushes to the 'main' branch. What is the most efficient way to achieve this?

A team uses AWS CodeDeploy to deploy a web application to an Auto Scaling group. The deployment fails with the error 'The overall deployment failed because too many individual instances failed deployment, too few healthy instances are available, or some instances in your deployment group are experiencing problems.' The team checks the logs and finds that the application installation script fails on some instances due to missing dependencies. What is the BEST long-term solution?

A company has a multi-account AWS environment with separate accounts for development, staging, and production. They want to implement a CI/CD pipeline that deploys to each account sequentially after manual approvals. Which setup allows cross-account deployment with CodePipeline?

Which of the following are valid strategies for implementing continuous integration in AWS? (Choose two.)

A company uses AWS CodeBuild to build a Docker image and push it to Amazon ECR. The buildspec.yml includes a 'post_build' phase command to tag the image. The build fails with 'unauthorized: authentication required'. What must be done to resolve this?

A company stores its application source in an AWS CodeCommit repository. The security team requires that all code changes be reviewed and approved by at least one other developer before being merged into the `main` branch. A DevOps engineer needs to enforce this policy and prevent direct pushes to `main`. Which combination of actions should the engineer take?

A development team uses AWS CodeCommit and AWS CodePipeline for CI/CD. They notice that a pipeline execution failed due to a code review rejection in the 'Approve' stage. The pipeline is configured with a manual approval action. What is the most likely cause of the failure?

A company uses AWS CodeCommit for source control. Developers work on feature branches and create pull requests to merge into the 'develop' branch. The company wants to enforce that all commits to the 'develop' branch are signed. Which AWS service or feature should be used to enforce this policy?

A company uses AWS CodeBuild to run integration tests. The tests require access to an RDS database in a private subnet. CodeBuild runs in a VPC but the build times out waiting for the database connection. What is the MOST likely cause?

A company uses AWS CloudFormation to manage infrastructure. They want to deploy a stack that creates an Amazon RDS DB instance. The database password must be stored securely and rotated automatically. Which approach meets these requirements?

A company uses AWS CodeBuild to compile and test code. The build takes 30 minutes, but the team wants to reduce build time by caching dependencies. Which approach should be used?

A DevOps engineer is setting up a CI/CD pipeline for a Python application using AWS CodePipeline. The pipeline includes a build stage with CodeBuild and a deploy stage that runs an AWS CLI command to update a Lambda function. Which THREE steps are necessary to ensure the pipeline can update the Lambda function? (Choose 3)

Refer to the exhibit. A DevOps engineer sees the following error when trying to update a CloudFormation stack: 'Stack [arn:aws:cloudformation:us-west-2:123456789012:stack/MyStack/abc123] is in ROLLBACK_COMPLETE state and can not be updated.' What should the engineer do to proceed?

Refer to the exhibit. A CodeBuild project uses this buildspec.yml to build and push a Docker image to Amazon ECR. The build fails at the pre_build phase with the error 'Error: Cannot perform an interactive login from a non TTY device'. What is the MOST likely issue?

A company uses AWS CodePipeline with a source stage from GitHub (via CodeStar Connections). The pipeline has a build stage using AWS CodeBuild and a deploy stage using AWS CodeDeploy. The team wants to ensure that a new pipeline execution starts automatically whenever a pull request is merged into the main branch. Which configuration change should be made to meet this requirement?

A company is using AWS CodeCommit with multiple repositories. Developers are required to create pull requests for all changes, and the pull request must be associated with a JIRA issue key (e.g., PROJ-123) in the commit message. A DevOps engineer needs to enforce this policy automatically. Which approach meets the requirement with minimal operational overhead?

A company uses AWS CodePipeline to deploy a critical application. The pipeline has a manual approval step before deployment. Which TWO actions should be taken to improve security and auditability? (Choose two.)

A company uses AWS CodePipeline with a multi-branch strategy. Developers push to feature branches, which should trigger a pipeline that runs unit tests and then deploys to a staging environment. However, the pipeline only triggers on the main branch. What should be done to enable pipeline execution for feature branches?

Which TWO actions are best practices when designing a CI/CD pipeline for a containerized application on Amazon ECS? (Choose two.)

A company is migrating to a microservices architecture on Amazon ECS with AWS Fargate. They want to automate the deployment process using AWS CodePipeline. The pipeline should build a Docker image, push it to Amazon ECR, and deploy the updated service to ECS. Which THREE components are required in the pipeline? (Choose 3.)

A company uses AWS CodeBuild to run unit tests for a Python application. The buildspec.yml file specifies a build phase that runs 'pytest'. The team wants to ensure that the build fails if any test fails, and that test results are available in the CodeBuild console. Which change should they make to the buildspec.yml?

An organization is using AWS CodeDeploy to deploy an application to an Auto Scaling group. The deployment fails because the target group is not configured correctly. Which CodeDeploy component is responsible for registering instances with the load balancer?

An organization uses AWS CodeDeploy for automated deployments to EC2 instances. The deployment is failing with the error 'The overall deployment failed because too many individual instances failed deployment, too few healthy instances are available for deployment, or some instances in your deployment group are experiencing problems.' The deployment group has a minimum healthy hosts setting of 75%. The application has 4 instances. What is the MOST likely issue?

A company uses AWS CloudFormation to manage infrastructure. They need to implement a CI/CD pipeline that automatically updates CloudFormation stacks when changes are pushed to a CodeCommit repository. The pipeline must use change sets to review changes before execution. Which pipeline configuration meets these requirements?

A DevOps engineer manages a CodePipeline with a CodeCommit source, a CodeBuild test stage, and a manual approval before a production deploy stage. Audit requires that only the specific commit that passed testing can be deployed, and that no new commits pushed to the branch between test and approval can reach production. What should the engineer configure to guarantee this?

An organization uses AWS CodePipeline with multiple stages: Source, Build, Test, and Deploy. The Test stage runs integration tests that take 30 minutes. The team wants to speed up feedback without skipping tests. Which action should they take?

A DevOps engineer is troubleshooting a failed AWS CloudFormation stack update. The stack contains an AWS::Lambda::Function resource. The update failed with the error 'Resource creation cancelled' after a timeout. The engineer wants to view the logs from the Lambda function during the stack update to diagnose the issue. What should the engineer do?

A DevOps engineer needs to implement a CI/CD pipeline that builds a Docker image, scans it for vulnerabilities, and deploys it to Amazon ECS. The scanning must be integrated into the pipeline before the image is pushed to Amazon ECR. Which approach meets these requirements?

A DevOps engineer is setting up a CI/CD pipeline for a microservices architecture. The team uses AWS CodeCommit, CodeBuild, and CodeDeploy. The engineer needs to ensure that the pipeline can automatically roll back the deployment if the health checks fail after deployment. Which action should the engineer take?

A developer wants to automate the creation of a new Amazon ECS service whenever a new Docker image is pushed to Amazon ECR. Which AWS service should be used to orchestrate this workflow?

A company uses AWS CodeBuild to build and test a Node.js application. The buildspec.yml currently runs npm install and npm test. They want to also run a security scan using a third-party tool. Which THREE steps are required to integrate the security scan into the CodeBuild build?

Refer to the exhibit. The deployment succeeded but the application fails. What is the MOST likely cause?

A company uses AWS CodeStar to manage software development projects. The team wants to integrate a third-party issue tracking system with CodeStar. Which AWS service should they use to achieve this integration?

Which TWO are valid deployment configurations in AWS CodeDeploy? (Choose two.)

An organization uses AWS CodePipeline to deploy a serverless application using AWS Lambda and Amazon API Gateway. The pipeline includes a manual approval action. The team wants to ensure that the approval email is sent to multiple approvers and that any one of them can approve or reject. How should the approval action be configured?

A DevOps engineer is setting up a CI/CD pipeline for a Node.js application. The application must be built, tested, and deployed to an Amazon ECS cluster. The team wants to use AWS CodeBuild to run unit tests and package the application as a Docker image, and AWS CodePipeline to orchestrate the workflow. Which artifact type should CodeBuild output to be used by a subsequent CodePipeline action?

A developer is using AWS CloudFormation to deploy a stack that includes an AWS Lambda function. The Lambda function code is stored in an S3 bucket. The CloudFormation template references the S3 bucket and object key. The developer wants to update the Lambda function code by uploading a new zip file to S3 and then updating the stack. The developer updates the S3 object with a new version, but the stack update does not automatically use the new code. What should the developer do to ensure the stack update uses the new code?

A company has a monolith application that takes over an hour to build. The DevOps team wants to implement continuous integration using AWS CodeBuild. The build environment requires a large amount of dependencies that are rarely updated. Which strategy will MINIMIZE build time and cost?

A DevOps engineer is setting up a CI/CD pipeline for a microservices application using AWS CodePipeline. The pipeline includes a Test stage that runs integration tests against a staging environment. The engineer wants to ensure that manual approval is required before deploying to production. Which action should be taken?

A company is implementing a CI/CD pipeline for a containerized application using AWS CodePipeline, CodeBuild, and Amazon ECS. The pipeline should automatically deploy to a staging environment and then, after manual approval, to production. The production environment uses an ECS service with rolling update deployment. Which TWO actions are necessary to achieve this?

A company uses AWS CodeBuild to compile a Java application. The buildspec.yml includes a pre_build phase that runs unit tests and a build phase that packages the application. Recently, builds have been failing intermittently with 'OutOfMemoryError' during the test phase. The build environment is set to 'BUILD_GENERAL1_SMALL'. What is the MOST cost-effective solution?

A development team is using AWS CodeCommit to store source code and AWS CodePipeline to automate builds and deployments. The team wants to ensure that builds and tests are triggered only when code is pushed to specific branches, and that manual approval is required before deploying to production. Which CodePipeline configuration should the team implement?

A team uses AWS CodePipeline with a source action from an Amazon S3 bucket. The pipeline triggers on changes to the S3 bucket, but sometimes runs twice for a single commit. What is the most likely cause?

A development team uses AWS CodeBuild to compile a Java application. The build takes 15 minutes on average, but recently it started taking over 30 minutes. The buildspec.yml file is unchanged. What is the most likely cause?

An organization uses AWS CodeDeploy to deploy a web application to an Auto Scaling group. The deployment fails with the error 'The overall deployment failed because too many individual instances failed deployment, too few healthy instances are available for deployment, or some instances in your deployment group are experiencing problems.' The engineer reviews the deployment logs and finds that the AppSpec file is correctly formatted and the scripts run successfully on some instances. What is the MOST likely cause?

A company uses AWS CodePipeline with a source stage from Amazon S3. The pipeline triggers on changes to the S3 bucket. However, the pipeline does not trigger when a new object is uploaded. What is the MOST likely cause?

Which TWO are valid use cases for using AWS CodeArtifact in a CI/CD pipeline? (Choose two.)

A company is implementing a CI/CD pipeline using AWS CodePipeline to deploy a serverless application using the AWS Serverless Application Model (SAM). The pipeline must build and package the application, then deploy it to multiple environments (dev, test, prod) sequentially with manual approval gates before production. Which stage configuration should be used?

A DevOps engineer is setting up an AWS CodePipeline to deploy a web application to an EC2 instance using AWS CodeDeploy. The deployment group uses an in-place deployment configuration. The pipeline's deploy stage fails with the error: 'The overall deployment failed because too many individual instances failed deployment, too few healthy instances are available, or some instances in your deployment group are experiencing problems.' The engineer checks the CodeDeploy logs on the instance and finds that the 'BeforeInstall' lifecycle hook script is failing. The script attempts to download a package from an Amazon S3 bucket that is encrypted with SSE-KMS. What is the MOST likely cause of the failure?

A DevOps team is implementing a CI/CD pipeline using AWS CodePipeline. The pipeline has a Source stage using CodeCommit, a Build stage using CodeBuild, and a Deploy stage using CloudFormation. The team wants to add manual approval before the Deploy stage for production deployments. How should this be configured?

A DevOps engineer is designing a CI/CD pipeline using AWS CodePipeline. The source stage is AWS CodeCommit, and the build stage uses AWS CodeBuild. The pipeline must only trigger on changes to the main branch. However, the engineer notices that the pipeline is also triggering on changes to feature branches that are merged via pull requests. What configuration change should the engineer make to ensure the pipeline only triggers on direct commits to the main branch?

Drag and drop the steps to configure an AWS Elastic Load Balancer (ALB) with HTTPS listeners and target groups.

An IAM policy is attached to a service role used by AWS CodePipeline. Which TWO statements about this policy are correct?

A team wants to automatically deploy a new version of a Lambda function when code is pushed to a CodeCommit repository. Which AWS service should orchestrate this workflow?

A company deploys a serverless application using AWS SAM. The application includes an API Gateway REST API and multiple Lambda functions. The team wants to implement canary deployments for the API to gradually shift traffic to a new version. Which SAM template configuration should be used?

Which TWO AWS services can be used as source actions in AWS CodePipeline to automatically trigger a pipeline when changes are made? (Choose two.)

Refer to the exhibit. A DevOps engineer created this IAM policy for a CodeDeploy service role. The deployment fails with an 'AccessDenied' error when attempting to register instances with an Auto Scaling group. What is the likely cause?

A team uses AWS CodeBuild to build Docker images and push them to Amazon ECR. The buildspec.yml includes a post_build step that runs a security scan. The team wants to ensure that only images that pass the security scan are tagged as 'latest'. Which approach should be used?

A DevOps team is implementing infrastructure as code using AWS CloudFormation. They want to ensure that stack updates are reviewed and approved before execution. Which feature should they use?

Which TWO criteria must be met for an AWS CloudFormation stack update to be successful? (Choose 2.)

A DevOps team is implementing a CI/CD pipeline for a microservices architecture. Each microservice is built and deployed independently. The team wants to ensure that only one build runs per microservice at a time to avoid resource contention, and that the build artifacts are stored securely. Which THREE steps should the team take?

A development team uses AWS CodeCommit for source control. They want to enforce that all commits include a JIRA issue key in the commit message. What is the MOST efficient way to achieve this?

Which TWO actions should a DevOps engineer take to ensure that an AWS CodeBuild project's artifacts are automatically deployed to an Amazon S3 bucket with server-side encryption using AWS KMS? (Choose 2.)

A company uses AWS CloudFormation to deploy a multi-tier application. The stack creation fails with a 'CREATE_FAILED' error for a resource. The engineer wants to troubleshoot the issue. Which TWO steps should the engineer take? (Choose TWO.)

A DevOps team uses AWS CodePipeline to deploy a static website to an Amazon S3 bucket. The pipeline has a source stage (CodeCommit), a build stage (CodeBuild that runs a build tool), and a deploy stage (S3). After a recent code change, the build stage succeeded but the deploy stage failed with the error: 'Access Denied' when uploading artifacts to the S3 bucket. What should the team do to fix the issue?

Which AWS service is primarily used to automate the building, testing, and deployment of code changes to AWS infrastructure based on a defined release process?

A DevOps engineer is using AWS CodePipeline to deploy a containerized application to Amazon ECS. The pipeline has a source stage (Amazon ECR), a build stage (AWS CodeBuild), and a deploy stage (Amazon ECS). The engineer wants to implement blue/green deployments with automatic rollback if the new version fails health checks. Which configuration should the engineer use to achieve this?

A team wants to automate the deployment of a serverless application using AWS SAM. They have a template.yaml file defining Lambda functions, an API Gateway, and a DynamoDB table. Which command should they use to build and deploy the application?

A DevOps engineer runs the above AWS CLI commands and notices that the CodeBuild project 'my-project' exists but builds fail with the error 'Access Denied' when trying to fetch source code from CodeCommit. The IAM role 'CodeBuildServiceRole' has a policy that allows 'codecommit:GitPull' on all repositories. What is the most likely cause of the failure?

A DevOps engineer is designing a deployment pipeline for a serverless application using AWS SAM. The pipeline must include the following stages: source, build, deploy to a development environment, run integration tests, and promote to production after manual approval. Which AWS services and features should be used to implement this pipeline? (Choose two.)

A development team uses AWS CodeCommit to store source code and AWS CodePipeline to automate builds and deployments. The team wants to ensure that every commit to the main branch triggers a build and deployment to a test environment. Which action should be taken?

A developer wants to automatically deploy a new version of an AWS Lambda function whenever code is pushed to a specific branch in AWS CodeCommit. Which combination of services should be used?

A company uses AWS CodePipeline with a GitHub source action. They want to automatically start the pipeline when a pull request is merged to the main branch. However, the pipeline also starts on every push to any branch. How can they limit the pipeline to only trigger on push events to the main branch?

Refer to the exhibit. A team uses this buildspec.yml file in AWS CodeBuild. After the build, they expect the artifacts to be placed in a folder structure, but all files are in the root of the output artifact. What is the reason?

A company is using AWS CodePipeline with multiple stages: Source (GitHub), Build (CodeBuild), Test (CodeBuild), and Deploy (CloudFormation). The deployment stage is failing intermittently with a 'Rate exceeded' error. The team needs to reduce deployment failures. Which TWO actions should the team take?

A DevOps engineer is configuring a webhook trigger in AWS CodePipeline to automatically start a pipeline when changes are pushed to a specific branch in a CodeCommit repository. The webhook is created and the trigger is set to the 'main' branch. However, when a developer pushes a commit to the 'main' branch, the pipeline does not start. What is the MOST likely reason?

You are a DevOps engineer at a company that runs a critical web application on Amazon EC2 instances behind an Application Load Balancer (ALB). The application is deployed using AWS CodeDeploy with an in-place deployment strategy. The deployment group contains 10 EC2 instances in an Auto Scaling group. Recently, a deployment failed with the error 'The overall deployment failed because too many individual instances failed deployment.' You check the CodeDeploy agent logs on one of the failed instances and see the error 'Script at /opt/codedeploy-agent/deployment-root/deployment-logs/scripts/application_start.sh failed with exit code 1.' The application_start.sh script is part of the AppSpec file. The script attempts to restart the web server. You notice that the script uses a path that exists only on some instances. What should you do to resolve this issue and prevent future failures?

A company uses AWS CodeCommit for source control. Developers report that their local branches are out of sync with the remote repository, and they are unable to push changes because of 'non-fast-forward' errors. What should the developers do to fix this?

A DevOps engineer needs to automate the creation of an Amazon ECS cluster using AWS CloudFormation. The cluster will run a web application that requires a load balancer. Which resource should be used to define the ECS cluster?

Refer to the exhibit. A CodePipeline service role has this IAM policy attached. The pipeline's deploy stage uses CodeDeploy to perform an ECS blue/green deployment. The deployment fails with an access denied error. What is the MOST likely missing permission?

A company uses AWS CodePipeline to deploy a serverless application using AWS SAM. The pipeline has a source stage from CodeCommit, a build stage that runs 'sam build', and a deploy stage that runs 'sam deploy --no-confirm-changeset'. The deploy stage fails with the error 'The security token included in the request is invalid.' What is the MOST likely cause?

Refer to the exhibit. An IAM policy is attached to a user who needs to start a CodePipeline pipeline and view its details. The user reports that they cannot see the pipeline in the AWS Management Console. What is the MOST likely reason?

A development team is using AWS CodeCommit as a source control repository. They want to automate code builds and run unit tests every time a developer pushes code to the 'develop' branch. Which AWS service should they use to trigger the build automatically?

A company uses AWS CodePipeline to deploy a microservices application to Amazon ECS. The pipeline has a source stage (CodeCommit), a build stage (CodeBuild), and a deploy stage (CodeDeploy). Recently, deployments have been failing intermittently during the deploy stage with the error: 'The service has reached its maximum number of running tasks.' How should a DevOps engineer resolve this issue?

A company uses AWS CodeDeploy for deploying applications to an Auto Scaling group of Amazon EC2 instances. The deployment is failing with the error 'The overall deployment failed because too many individual instances failed deployment, too few healthy instances are available, or some instances in your deployment group are experiencing problems.' Which two actions should the DevOps engineer take to troubleshoot and resolve the issue? (Choose two.)

A company uses AWS CodeBuild to run security scans. The scans require access to a private Amazon ECR repository. The build project is configured with a service role. What is the correct way to provide access to ECR?

A company uses AWS CodePipeline to deploy a web application to an Elastic Beanstalk environment. The pipeline has a source stage from CodeCommit, a build stage using CodeBuild, and a deploy stage to Elastic Beanstalk. Recently, deployments started failing with an error: 'The deployment failed because the Elastic Beanstalk environment is in an UPDATE_ROLLBACK_IN_PROGRESS state.' What is the MOST likely cause?

A DevOps engineer is designing a CI/CD pipeline that must enforce a policy: any change to the production branch in CodeCommit must be reviewed and approved by two senior developers before the change can be merged. The pipeline must also automatically build and deploy to a staging environment after approval. Which combination of AWS services and configurations should be used?

A DevOps team uses AWS CodePipeline to deploy a microservices application. The pipeline includes a CodeBuild project that runs unit tests. Recently, builds have been failing intermittently due to test timeouts. The team wants to improve the reliability of the pipeline without increasing the build timeout. Which action should the team take?

A company uses AWS CodeBuild to run security scans on code. The scan requires access to a private Amazon ECR repository for downloading scanning tools. The CodeBuild project is configured with a VPC and uses an IAM role. However, the build fails with 'Error: unable to pull image from registry.' Which TWO steps should be taken to resolve this?

Refer to the exhibit. A developer has a buildspec.yaml for a React application. The build completes successfully, but the artifacts output is empty. What is the most likely cause?

A DevOps engineer is designing a CI/CD pipeline for a containerized application using AWS CodeBuild and Amazon ECS. Which TWO actions will help reduce the frequency of Docker image pulls from the public Docker Hub registry?

A development team uses AWS CodeCommit for source control and AWS CodePipeline for CI/CD. The pipeline has a source stage that pulls from a CodeCommit repository, a build stage using AWS CodeBuild, and a deploy stage that uses AWS CodeDeploy to deploy to an EC2 Auto Scaling group. The team notices that the pipeline frequently fails at the deploy stage with the error 'The deployment failed because the deployment group's deployment configuration specifies a minimum healthy host count of 1, but 0 healthy hosts are available.' What is the MOST likely cause of this issue?

A developer is troubleshooting a failed CodeBuild build. The build is triggered by a pull request from a forked repository. The buildspec includes a command to fetch pull request references. What is the most likely cause of the failure?

A company has a monorepo in AWS CodeCommit with multiple microservices. They want to use AWS CodePipeline to build and deploy only the microservice that changed. What is the MOST efficient approach?

A DevOps engineer is designing a CI/CD pipeline for a microservices application using AWS CodePipeline. Each microservice has its own CodeCommit repository. The engineer wants to run unit tests in parallel for all services when any repository receives a push, then run integration tests only after all unit tests pass. Which pipeline structure should the engineer use?

A company uses AWS CodeBuild to run integration tests as part of a pipeline. The tests require access to an Amazon RDS database. The RDS instance is in a private subnet with no public access. The CodeBuild project is configured with a VPC. Which additional configuration is necessary to ensure the build can connect to the database?

Refer to the exhibit. A developer is using this buildspec.yml in AWS CodeBuild to build and push a Docker image to Amazon ECR. The build fails with the error: 'Error: No region specified'. Which change should the developer make to resolve this error?

A company uses AWS CodePipeline to automate their software release process. They want to add a stage that runs security scanning on the code before deployment. Which two AWS services can be integrated into the pipeline for this purpose? (Choose TWO.)

A DevOps engineer is reviewing the IAM policy attached to a CodeBuild service role. The policy allows starting builds and viewing logs. However, when CodeBuild tries to download artifacts from an S3 bucket in the same account, it fails with an access denied error. What is the missing permission?

A company uses AWS CodePipeline to deploy a serverless application using AWS SAM. The pipeline includes a build stage that runs 'sam build' and a deploy stage that runs 'sam deploy'. The team wants to automatically test the deployed application before promoting it to production. Which THREE steps should be included in the pipeline?

A DevOps team is implementing a CI/CD pipeline for a microservices application deployed on Amazon ECS. They want to automatically build, test, and deploy container images to Amazon ECR and then update the ECS service. Which TWO steps are essential to achieve this goal?

A company is designing a CI/CD pipeline for a serverless application using AWS CodePipeline. Which TWO actions are valid ways to deploy an AWS Lambda function?

A development team is using AWS CodeCommit as a source repository and AWS CodePipeline to automate their CI/CD pipeline. The pipeline includes a build stage that runs on AWS CodeBuild. The team wants to automatically trigger the pipeline when changes are pushed to the 'develop' branch of the CodeCommit repository. Which configuration change should be made to the pipeline?

A developer is using AWS CodeBuild to compile code. The build takes a long time because dependencies are downloaded each time. What can the developer do to reduce build time?

Refer to the exhibit. Why does the build fail?

Which THREE considerations are important when designing a CI/CD pipeline for a microservices architecture using AWS CodePipeline? (Choose three.)

Which AWS service is a fully managed source control service?

A DevOps team is designing a CI/CD pipeline for a microservices application. Each microservice has its own CodeCommit repository and must be built and deployed independently. The team wants to minimize manual configuration and ensure that adding a new microservice automatically creates the corresponding pipeline stages. Which approach should the team use?

A company runs a critical application on Amazon ECS with Fargate. They use blue/green deployments via AWS CodeDeploy. During a recent deployment, the new task set failed health checks and CodeDeploy automatically rolled back. However, the old task set also became unhealthy shortly after rollback. What could explain this?

A company uses AWS CodeDeploy to deploy a web application to an Auto Scaling group. After a deployment, some instances fail the health check and are terminated by the Auto Scaling group. What should the DevOps engineer do to prevent this?

A DevOps engineer is troubleshooting a slow AWS CodeBuild project. The build is a Java application that compiles source code and runs tests. The build environment uses a general1.large compute type. The build duration has increased from 5 minutes to 15 minutes over the past month. The engineer notices that the build logs show 'Downloading...' messages for Maven dependencies for several minutes. What is the most cost-effective way to reduce the build time?

A company uses AWS CloudFormation to manage infrastructure. The development team wants to promote changes from a development environment to a production environment using change sets. They need to ensure that the production stack is not updated if there are any changes to the stack's IAM policies. Which approach should the team use?

Refer to the exhibit. A CodeBuild project uses this buildspec. The build fails with the error: 'The runtime version specified is not supported in this environment.' What change should be made?

A team uses AWS CloudFormation to manage infrastructure. They have a stack that creates an Amazon RDS instance. During an update, the stack fails with 'CREATE_FAILED' for the DB instance resource, and the error message indicates 'The DB instance already exists.' What is the most likely cause?

A team is using AWS CloudFormation to manage infrastructure. They want to implement a change management process where any modifications to the stack must be reviewed and approved. Which feature should they use?

A company is implementing a CI/CD pipeline for a microservices architecture on Amazon ECS. The pipeline must deploy to multiple environments (dev, test, prod) in sequence with manual approval gates between environments. Which two AWS services should be used together to meet these requirements? (Choose TWO.)

A developer is using AWS CodeCommit as a source repository for a CodePipeline. They want to automatically start the pipeline when changes are pushed to the main branch. What is the simplest way to achieve this?

A company uses AWS CloudFormation to create a stack with a Lambda function that uses a VPC. The stack creation fails with 'CREATE_FAILED: The provided execution role does not have permissions to call ec2:CreateNetworkInterface on the resource'. What is the likely cause?

A company is using AWS CodeBuild to build a Docker image and push it to Amazon ECR. The buildspec.yaml includes commands to build and tag the image. However, the push to ECR fails with an authentication error. Which TWO actions should the DevOps engineer take to resolve this?

A company uses AWS CodePipeline with a source stage from Amazon S3. The pipeline deploys a static website to an S3 bucket. The deployment must ensure that the website is always available and that rollbacks happen automatically if the deployment fails. Which TWO actions should the company take?

A company is using AWS CodeBuild to run builds for a Java application. The build takes a long time because it downloads Maven dependencies every time. The team wants to speed up the build by caching dependencies. Which TWO actions should be taken? (Choose 2)

Which TWO approaches can be used to automatically roll back a failed deployment in AWS CodeDeploy? (Choose two.)

A company is using AWS CodeDeploy with a blue/green deployment strategy for an Amazon ECS service. After a deployment, the new task set fails health checks, and CodeDeploy automatically rolls back to the original task set. However, the rollback fails because the original task set's desired count is set to 0. What is the most likely cause?

A team wants to automate the creation of a CI/CD pipeline using a JSON/YAML file that defines source, build, and deploy stages. Which AWS service should they use?

A DevOps engineer is troubleshooting a CodePipeline that has a Build stage using AWS CodeBuild. The build logs show 'Error: No such file or directory' for a file that is present in the source repository. What is the most likely cause?

A development team uses AWS CodePipeline to orchestrate builds and deployments. They want to automatically deploy to a staging environment only if a manual approval step is granted. Which configuration should they use?

A team uses AWS CodeBuild to run security scans on code before deployment. They want to ensure that if the security scan fails, the build is marked as FAILED and no further pipeline stages execute. What should they add to the buildspec?

During a deployment using AWS CodeDeploy, the deployment fails with the error 'The overall deployment failed because too many individual instances failed deployment, too few healthy instances are available, or some instances in your deployment group are experiencing problems.' The deployment group is configured with a minimum healthy instances of 75%. What could be the cause?

A startup is using AWS CloudFormation to manage their infrastructure. They have a stack that creates an Amazon S3 bucket and an Amazon DynamoDB table. The stack was created successfully, but when they try to update the stack to add a new S3 bucket, the update fails with the error 'CREATE_FAILED - S3 bucket already exists'. The new bucket name is unique and does not exist. The template uses the same AWS::S3::Bucket resource type. What is the most likely cause?

A DevOps engineer is setting up an AWS CodeBuild project that needs to access resources in a VPC, such as an Amazon RDS database. The engineer has configured the CodeBuild project to run in the VPC. Which additional configuration is required for CodeBuild to pull the build Docker image?

A development team uses AWS CodeCommit as a Git repository. They want to automatically trigger a build in AWS CodeBuild whenever a pull request is created or updated. Which AWS service should be used to detect the pull request events and start the build?

A company uses AWS CodeCommit for source control. Developers frequently push large binary files (e.g., compiled binaries, datasets) to the repository, causing repository size to grow and clone operations to become slow. What is the BEST approach to manage this?

A DevOps team is designing a CI/CD pipeline for a microservices application. Each service is stored in a separate repository. The team wants to build and test only the services that changed in a given commit. Which AWS solution is MOST efficient and cost-effective?

A company uses AWS CodePipeline with multiple stages. The pipeline includes a Beta stage that deploys to a test environment and a Prod stage. The team wants to require manual approval before the Prod stage. Which TWO actions should be taken to implement this? (Choose TWO.)

Refer to the exhibit. A developer runs the AWS CLI command to start a build in AWS CodeBuild. The build project 'my-project' uses an S3 bucket as the source. What is the MOST likely cause of the error?

A DevOps team is implementing a CI/CD pipeline for a microservices architecture on AWS ECS. They want to ensure zero-downtime deployments and automatic rollback if health checks fail. Which combination of services should they use?

A company uses AWS CloudFormation to manage infrastructure. The DevOps team wants to deploy a stack across multiple accounts using AWS CodePipeline. Which approach is BEST for automating cross-account deployments?

A DevOps engineer is troubleshooting a failed CodePipeline execution. The pipeline has a source stage from CodeCommit, a build stage using CodeBuild, and a deploy stage using CodeDeploy. The build stage succeeds, but the deploy stage fails with 'No deployments found for the specified deployment group.' Which TWO actions should the engineer take to resolve this?

An organization uses AWS CodePipeline to deploy a static website to Amazon S3. The pipeline has a source stage (CodeCommit), a build stage (CodeBuild that minifies assets), and a deploy stage (S3 deployment). The team wants to add a stage for running security vulnerability scans on the code. Which TWO options are viable?

A company is using AWS CodeCommit for source control and wants to automatically trigger a build in AWS CodeBuild whenever a pull request is created against the main branch. Which AWS service should be used to connect CodeCommit events to CodeBuild?

A development team uses AWS CodeCommit for source control and AWS CodePipeline for CI/CD. The pipeline has a Source stage that polls the repository for changes. Recently, developers have noticed that the pipeline does not always trigger when code is pushed to the main branch. What is the most likely cause?

A company uses AWS CodePipeline to deploy a Node.js application to AWS Elastic Beanstalk. The pipeline includes a build stage that runs 'npm install' and 'npm test'. The team notices that the build stage often fails due to network timeouts when downloading npm packages. Which action would MOST reliably resolve this issue?

A DevOps engineer maintains a CodePipeline whose deploy stage uses the AWS CloudFormation deploy action. The team needs to add a step that runs a custom validation script against the generated CloudFormation template, and the validation must run before the stack is updated but must not modify the template. The validation script is stored in the same CodeCommit repository as the template. What is the most appropriate way to insert this step?

A company uses AWS CloudFormation to manage infrastructure. They have a stack that creates an Amazon RDS instance. The stack creation fails with the error: 'The following resource(s) failed to create: [DBInstance]'. The CloudFormation template includes a parameter for the DB instance class. Which troubleshooting step should be taken FIRST?

A company has a CI/CD pipeline that deploys to Amazon ECS using AWS CodePipeline. The pipeline includes a manual approval step before deployment to production. The security team requires that all approvals be logged in AWS CloudTrail and that the approver's identity be verified. Which action should the DevOps engineer take to meet these requirements?

A company uses AWS CodeDeploy with a blue/green deployment strategy for an Amazon EC2 Auto Scaling group. During deployment, the new instances are failing health checks and the deployment is rolling back. What is the MOST likely cause?

A company is using AWS CodeBuild to compile a Java application. The build takes over 30 minutes, which is too long. The project uses the standard build environment. The source code is stored in an S3 bucket. What is the most effective way to reduce build time?

A team uses AWS CodeBuild to run integration tests that require access to an Amazon RDS database. The database is in a private subnet. The CodeBuild project is configured to use a VPC. However, the builds are failing with a timeout connecting to the database. What could be the issue?

Refer to the exhibit. A DevOps engineer deploys this CloudFormation template. The EC2 instance launches, but the httpd service does not start. The engineer connects to the instance and finds that the user data script did not run. What is the most likely cause?

A DevOps engineer needs to automate the creation of an AWS CodeStar project for a new microservice. The engineer wants to use AWS CloudFormation to define the project and its resources. Which CloudFormation resource should be used?

A DevOps engineer is managing infrastructure as code using AWS CloudFormation. The engineer wants to automatically update a stack when changes are pushed to a Git repository. Which THREE services can be used together to achieve this?

A team uses AWS CodePipeline with multiple parallel actions in a stage. They notice that when one action fails, the entire stage fails and no further actions are attempted. They want the pipeline to continue with the remaining actions even if one fails, and then report the failure at the end. Which feature should they use?

A company wants to ensure that all code changes are reviewed before being merged to the main branch in AWS CodeCommit. Which feature should be enabled?

Refer to the exhibit. A team uses this buildspec.yml in AWS CodeBuild. The build fails because the 'dist' directory does not exist after the build phase. What is the most likely cause?

A company uses AWS CodeDeploy with a blue/green deployment configuration. The engineer wants to automatically roll back the deployment if the new instances fail the health check for 5 minutes. Which setting should the engineer configure?

A developer wants to automatically run unit tests when a pull request is created in AWS CodeCommit. Which AWS service should be used to trigger the tests?

A DevOps engineer is tasked with automating the deployment of a microservices architecture. Each service is packaged as a Docker container. The team wants to use AWS CodePipeline and AWS CodeBuild to build Docker images and push them to Amazon ECR, then deploy to Amazon ECS. What should the CodeBuild buildspec file include to push the image to ECR?

A development team uses AWS CodeCommit for source control and AWS CodePipeline for CI/CD. They have configured a CodeBuild project that triggers on pushes to the 'develop' branch. The build runs unit tests and packages the application. However, developers report that the pipeline fails intermittently with a 'BUILD_FAILED' status due to test failures, but the tests pass locally. What is the MOST likely cause of this discrepancy?

A development team is using AWS CodeCommit as a source control repository. They want to automate the creation of a new feature branch whenever a developer creates a new Jira issue with a specific label. Which AWS service should be used to listen for Jira webhooks and trigger the branch creation?

Refer to the exhibit. The above buildspec.yml is used in AWS CodeBuild. The build is failing during the 'build' phase with a 'FileNotFoundError: setup.py' error. What is the MOST likely cause?

Which THREE steps are required to set up a continuous deployment pipeline using AWS CodePipeline that deploys a Docker-based application to Amazon ECS? (Choose three.)

A company uses AWS Elastic Beanstalk to deploy a web application. They have set up a CI/CD pipeline using AWS CodePipeline. The pipeline has a source stage from GitHub (using the GitHub source action) and a deploy stage that deploys to Elastic Beanstalk. The deployment is configured to use the 'Immutable' deployment policy. Recently, the deployment started failing with the error: 'The environment is in an unhealthy state. The deployment failed.' The developer checks the Elastic Beanstalk environment and sees that the new instances are not passing health checks. The application logs show that the new instances cannot connect to the existing Amazon RDS database. What is the most likely cause?

A company uses AWS CloudFormation to manage infrastructure. The DevOps engineer wants to implement a CI/CD pipeline that builds and tests a CloudFormation template and then deploys it across multiple AWS accounts. Which combination of services should the engineer use?

A developer wants to automate the testing of a serverless application built with AWS Lambda and Amazon API Gateway. Which AWS service is best suited for running integration tests as part of a CI/CD pipeline?

A DevOps engineer notices that a CodePipeline execution fails at the deploy stage when deploying a Lambda function using AWS CloudFormation. The error message indicates that the stack update failed because the Lambda function's code is too large. What is the most likely cause?

Which TWO actions can be used to improve the security of a CI/CD pipeline that uses AWS CodePipeline? (Choose two.)

A company has a CI/CD pipeline that builds a Docker image and pushes it to Amazon ECR. The build step uses AWS CodeBuild. The engineer wants to ensure that the ECR repository has a lifecycle policy to expire untagged images after 14 days. Which TWO actions are required? (Choose 2.)

A team uses AWS CodeDeploy to deploy a web application to an Auto Scaling group. The deployment strategy is Blue/Green. During a recent deployment, the new instances passed all health checks, but traffic was not routed to them. What is the most likely reason?

A company has a CI/CD pipeline using AWS CodePipeline and AWS CodeBuild. The build stage runs unit tests and produces a JUnit report. The pipeline includes a test action that publishes results to an S3 bucket. Recently, the pipeline started failing with the error: 'The action could not be started because the artifact bucket policy is misconfigured.' What is the most likely cause?

Which TWO options are valid ways to trigger an AWS CodePipeline execution automatically?

A DevOps engineer is creating an AWS CloudFormation template to deploy a stack that includes an Amazon EC2 instance. The instance needs to be launched in a specific subnet. How should the engineer reference the subnet ID in the template?

The exhibit shows a CloudFormation stack event. The stack creation failed with 'Resource creation cancelled'. What is the most likely reason for this cancellation?

A DevOps engineer is designing a deployment pipeline for a microservices application on Amazon ECS. The team wants to use blue/green deployments with automatic rollback if CloudWatch alarms are triggered during the deployment. Which combination of services and configurations should the engineer use?

A company uses AWS CodeBuild to compile a Java application. The build specification includes a pre-build phase to download dependencies. Which file defines the commands for each build phase?

A company uses AWS CodePipeline with a source stage from Amazon S3 and a deploy stage to AWS Elastic Beanstalk. The pipeline has been working for months, but recently the deploy stage started failing with the error 'The S3 object does not exist.' The source artifact is uploaded to the S3 bucket by an external system. Which TWO actions should be taken to resolve this issue? (Choose TWO.)

A DevOps team is implementing a blue/green deployment strategy for a microservice running on Amazon ECS with AWS CodeDeploy. They want to shift 10% of traffic to the new task set for 5 minutes, then shift the remaining 90%. Which deployment configuration should they use?

A DevOps engineer is building a CI/CD pipeline for a PHP application that uses Amazon RDS for MySQL. The pipeline must run database migrations as part of the deployment. The team wants to ensure that if a migration fails, the deployment is rolled back and the database is restored to its previous state. Which THREE steps should the engineer implement?

A company uses AWS CloudFormation to manage infrastructure as code. They have a stack that creates an Amazon RDS database instance. The database password is stored as a parameter in AWS Systems Manager Parameter Store. The CloudFormation template references the parameter using the 'resolve:ssm' dynamic reference. Recently, a security audit found that the password was exposed in plaintext in the CloudFormation stack outputs. The team wants to prevent sensitive information from being displayed in stack outputs or logs. Which approach should be taken?

A DevOps engineer is reviewing the CodePipeline structure above. The pipeline fails during the Deploy stage with an error: 'The deployment group could not be found.' What is the most likely cause?

A company uses AWS Elastic Beanstalk for deploying a web application. The development team wants to implement a blue/green deployment strategy to minimize downtime. Which approach should they use?

A DevOps team uses AWS CodePipeline with a multi-branch strategy. The pipeline should deploy to production only from the 'main' branch, but run unit tests for all branches. How should the team configure the pipeline?