AWS DevOps CI/CD Pipelines 4

Question 1

A company wants to implement canary deployments for an AWS Lambda function through CodeDeploy. Which deployment preference type should they configure?

Accepted Answer

Canary

Answer

The Canary deployment preference in CodeDeploy shifts a small percentage of traffic to the new Lambda version first, then shifts the remainder after a validation interval.

Question 2

What does the 'transition disabled' state on a CodePipeline stage mean?

Accepted Answer

Artifacts cannot pass from the previous stage into this stage until the transition is re-enabled

Answer

Disabling a stage transition prevents new executions from entering that stage while allowing in-progress executions to complete, useful for freeze windows.

Question 3

A CodeBuild project needs access to resources inside a private VPC. Which configuration is required?

Accepted Answer

Configure VPC settings (VPC ID, subnets, security groups) in the CodeBuild project

Answer

CodeBuild can be configured with a VPC, subnets, and security groups so build containers are placed inside the VPC and can reach private resources.

Question 4

Which AWS CodePipeline source action type natively supports triggering on a pull request event from a GitHub repository?

Accepted Answer

CodeStarSourceConnection action (GitHub version 2)

Answer

The CodeStarSourceConnection action (GitHub version 2) uses AWS CodeStar Connections and supports pull request triggers as well as push events.

Question 5

A team wants to enforce that unit tests must pass before the Docker image is pushed to ECR in CodeBuild. How should they order the buildspec phases?

Accepted Answer

pre_build → build → post_build, with tests in build and push in post_build

Answer

Best practice is to run tests in the build phase and push artifacts (like Docker images to ECR) in post_build, so a test failure stops the pipeline before the push.

AWS Practice Test

AWS Practice Test

AWS DevOps CI/CD Pipelines 4