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Cloud Developer & DevOps

AWS Certified DevOps Engineer Professional (DOP-C02)

By Webmaster Certland English 📝 340 questions 🔄 Updated on April 14, 2026

Practice exam for the AWS Certified DevOps Engineer Professional. Covers SDLC automation, configuration management and IaC, resilient cloud solutions, monitoring, incident response, and security.

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Sample Questions — AWS Certified DevOps Engineer Professional (DOP-C02)

5 free sample questions from this practice exam. Correct answers are highlighted.

1. A company uses AWS CodePipeline to deploy applications. The team wants to automatically trigger the pipeline whenever code is pushed to their AWS CodeCommit repository on the main branch. Which configuration achieves this with the least operational overhead?

A Create an Amazon EventBridge rule that matches CodeCommit repository state change events and targets the CodePipeline pipeline ✓ Correct
B Create an AWS Lambda function that polls the CodeCommit repository every minute and starts the pipeline when new commits are detected
C Configure a CodeCommit webhook to call the CodePipeline API directly on every push to main
D Create a scheduled Amazon CloudWatch Events rule that runs every 5 minutes and triggers the pipeline

2. A DevOps engineer needs to implement a deployment strategy for a critical e-commerce API that requires zero downtime and the ability to instantly roll back if error rates spike. The application runs on Amazon ECS. Which AWS CodeDeploy deployment type best meets these requirements?

A Rolling update deployment with a minimum healthy percent of 50%
B Blue/green deployment using AWS CodeDeploy with an Application Load Balancer ✓ Correct
C In-place deployment replacing all ECS tasks simultaneously
D Canary deployment shifting 10% of traffic initially before full cutover

3. An organization runs a microservices application on AWS Lambda. A DevOps team wants to implement automated testing in their CI/CD pipeline that validates integration between Lambda functions before promoting to production. Which approach provides the most reliable integration testing?

A Use LocalStack to simulate AWS services locally and run integration tests in the build stage
B Write unit tests with mocked AWS SDK calls to validate business logic between Lambda functions
C Deploy the Lambda functions to a staging environment and run automated integration tests against real AWS service endpoints ✓ Correct
D Run integration tests directly against the production Lambda functions using traffic shadowing

4. A company's AWS CodeBuild project builds Docker images and pushes them to Amazon ECR. The build is failing with an authorization error when attempting to push to ECR. What is the most likely cause and fix?

A The CodeBuild service role does not have the required Amazon ECR permissions such as ecr:GetAuthorizationToken and ecr:PutImage ✓ Correct
B The ECR repository resource policy does not allow the CodeBuild service to push images
C The CodeBuild project is not configured to run inside the correct VPC with access to ECR endpoints
D The buildspec.yml is missing the docker login command before the docker push command

5. A DevOps engineer wants to enforce that every pull request to the main branch in AWS CodeCommit must pass a CodeBuild test project before merging is allowed. Which CodeCommit feature enables this?

A Configure CodeCommit branch protection policies to require all checks to pass before merging
B Use an S3 artifact gate that CodeBuild writes to before CodeCommit allows a merge
C Apply IAM permission boundaries that deny merge actions until the CodeBuild status is green
D Use CodeCommit approval rule templates combined with EventBridge and CodeBuild to programmatically approve pull requests after tests pass ✓ Correct

AWS Certified DevOps Engineer Professional (DOP-C02) — Frequently Asked Questions

How many practice questions does the AWS Certified DevOps Engineer Professional (DOP-C02) prep include?

CertLand's AWS Certified DevOps Engineer Professional (DOP-C02) prep includes 340 exam-style questions covering every domain, each with a detailed explanation of why every answer option is correct or incorrect.

What score do I need to pass the AWS Certified DevOps Engineer Professional (DOP-C02)?

The AWS Certified DevOps Engineer Professional (DOP-C02) passing score is 75%. CertLand scores every practice attempt the same way and breaks your results down by domain, so you know exactly where you stand before exam day.

Can I try AWS Certified DevOps Engineer Professional (DOP-C02) questions for free?

Yes. You can answer 5 real AWS Certified DevOps Engineer Professional (DOP-C02) questions free — no account and no credit card needed — and see full explanations on the results page. You can also run a free Radar readiness diagnostic for a personalized study plan.

How long is each AWS Certified DevOps Engineer Professional (DOP-C02) practice attempt?

Each full AWS Certified DevOps Engineer Professional (DOP-C02) mock attempt on CertLand is timed at 180 minutes, mirroring real exam conditions so you build the pacing you need to finish on time.

Is there a money-back guarantee?

Yes. Every CertLand purchase is backed by a 14-day money-back guarantee on your first purchase — if the prep isn't right for you, you get a full refund.

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