DOP-C02 — AWS Certified DevOps Engineer - Professional
Amazon

AWS Certified DevOps Engineer - Professional (DOP-C02) Practice Questions

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85 questions
June 13, 2026 updated
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Domain coverage

  • SDLC Automation (22%)
  • Configuration Management and IaC (17%)
  • Resilient Cloud Solutions (15%)
  • Monitoring and Logging (15%)
  • Incident and Event Response (14%)
  • Security and Compliance (17%)

Sample Questions (9 of 85 shown)

Q1 SDLC Automation (22%)
A company wants to implement a deployment strategy that routes a small percentage of production traffic to a new application version before a full rollout. Which deployment strategy should the DevOps engineer use?
  1. In-place deployment with a single batch
  2. Blue/green deployment with immediate traffic switch
  3. Canary deployment with weighted traffic shifting
  4. Rolling deployment with a single batch
✓ Correct Answer: C
Canary deployment first routes a small percentage of traffic to the new version, allowing the team to monitor for errors before shifting all traffic. This minimizes the blast radius of potential problems. AWS CodeDeploy supports canary deployments with configurable traffic shifting.
Q2 SDLC Automation (22%)
A DevOps engineer needs to automatically trigger a build when code is pushed to an AWS CodeCommit repository. Which service should detect the push event and initiate the pipeline?
  1. AWS CloudTrail
  2. Amazon EventBridge
  3. AWS Config
  4. Amazon Inspector
✓ Correct Answer: B
Amazon EventBridge can capture CodeCommit repository state change events (such as push events) and trigger downstream actions such as starting AWS CodePipeline. This is the recommended event-driven approach for CI/CD trigger configuration on AWS.
Q3 SDLC Automation (22%)
An application team uses AWS CodePipeline with a manual approval action before production deployment. The team wants the approval to be automatically rejected if no action is taken within 2 hours. How should this be configured?
  1. Set a timeout property on the manual approval action in CodePipeline
  2. Create a CloudWatch alarm that triggers rejection after 2 hours
  3. Use a Lambda function on a scheduled EventBridge rule to check pending approvals
  4. Configure an SNS topic with a timeout property to auto-reject
✓ Correct Answer: A
The CodePipeline manual approval action supports a configurable timeout period. When the timeout expires without an approval, the action automatically fails and the pipeline stops. This is a built-in feature requiring no additional services.
Q4 SDLC Automation (22%)
A DevOps engineer is configuring AWS CodeBuild to run unit tests. The build specification needs to install dependencies, run tests, and generate coverage reports. In which section of buildspec.yml should the test commands be placed?
  1. install phase
  2. pre_build phase
  3. build phase
  4. post_build phase
✓ Correct Answer: C
The build phase in buildspec.yml is where the main build and test commands should run. The install phase is for dependency installation, pre_build for pre-build steps like logging into registries, and post_build for cleanup or packaging artifacts after the main build completes.
Q5 SDLC Automation (22%)
A company wants to ensure that all CodePipeline deployments to production use the exact same tested artifact version from the staging environment. Which CodePipeline feature ensures artifact consistency across stages?
  1. Stage-specific environment variables
  2. Input artifacts from the previous stage's output
  3. Separate S3 buckets for each stage
  4. Manual artifact uploads between stages
✓ Correct Answer: B
CodePipeline uses input and output artifacts to automatically pass artifacts between stages. When the production stage is configured to use the output artifact from the staging stage, the exact same tested artifact is deployed, ensuring version consistency without manual intervention.
Q6 SDLC Automation (22%)
A team is migrating from Jenkins to AWS CodePipeline. They need to continue using existing Jenkins build jobs during the transition. How can Jenkins be integrated with CodePipeline?
  1. Immediately replace Jenkins with CodeBuild
  2. Use the Jenkins action provider in CodePipeline
  3. Run Jenkins inside a CodeBuild container
  4. Use a Lambda function to call the Jenkins API endpoint
✓ Correct Answer: B
AWS CodePipeline natively supports Jenkins as a custom build or test action provider. You install the CodePipeline Plugin on the Jenkins server, configure it as a custom action provider, and CodePipeline triggers Jenkins jobs as part of pipeline execution.
Q7 SDLC Automation (22%)
A DevOps engineer wants to implement blue/green deployments for an application running on Amazon ECS with Fargate. Which AWS service orchestrates the traffic shift between the blue and green target groups?
  1. AWS CodePipeline
  2. AWS CodeDeploy
  3. Application Load Balancer
  4. Amazon Route 53
✓ Correct Answer: B
AWS CodeDeploy orchestrates blue/green deployments for Amazon ECS services. It manages traffic shifting between two target groups (blue and green) registered with the Application Load Balancer. CodeDeploy supports linear, canary, and all-at-once traffic shifting configurations.
Q8 SDLC Automation (22%)
A company requires all CodeBuild projects to use VPC networking to access internal resources. The build environment must also be able to pull dependencies from the internet. What must be configured to enable both internal and internet access?
  1. Assign a public IP to the CodeBuild instances in the VPC
  2. Place CodeBuild in a private subnet with a NAT gateway for internet access
  3. Use VPC peering to connect CodeBuild to the internet
  4. Configure an internet gateway directly on the CodeBuild subnet
✓ Correct Answer: B
When CodeBuild runs in a VPC, it must be placed in a private subnet. To access the internet for pulling dependencies, a NAT gateway (or NAT instance) in a public subnet provides outbound internet connectivity while keeping the build environment private.
Q9 SDLC Automation (22%)
A DevOps engineer needs to create a multi-stage CodePipeline that deploys to dev, staging, and production sequentially. Each environment uses different CloudFormation parameter values. What is the recommended way to manage environment-specific parameters?
  1. Maintain separate buildspec.yml files for each environment
  2. Use pipeline stage-level parameter overrides in the CloudFormation deployment action
  3. Create separate pipelines for each environment
  4. Hardcode parameters in the CloudFormation template
✓ Correct Answer: B
The CodePipeline CloudFormation deployment action supports parameter overrides, allowing you to specify different parameter values for each stage. This lets you use a single template with environment-specific values injected at deployment time, keeping the pipeline DRY.

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Frequently Asked Questions

While there are no mandatory prerequisites, AWS recommends 2+ years of experience managing AWS environments with strong DevOps skills. The DOP-C02 effectively combines and extends the Developer - Associate (DVA-C02) and SysOps Administrator - Associate (SOA-C03), so passing both Associate exams first is the recommended path. You should be proficient in CI/CD pipeline design, infrastructure as code (CloudFormation, CDK, or Terraform), monitoring/logging, and AWS security best practices. Candidates without these Associate-level foundations typically struggle significantly with the depth and breadth of the Professional exam.

The SDLC Automation domain (22% weight, the most heavily weighted) focuses on the full AWS CI/CD stack: CodeCommit (source control), CodeBuild (build and test), CodeDeploy (deployment with AppSpec files, deployment groups, hooks), and CodePipeline (orchestration with stages, actions, and transitions). You must understand deployment strategies (Blue/Green, Canary, Rolling), CodeDeploy hook execution order, pipeline artifact management, and integration with third-party tools like GitHub Actions and Jenkins. Cross-account and cross-region pipeline architectures are also frequently tested.

While both are Professional-level certifications, they focus on different aspects of AWS expertise. SAP-C02 is about architecting — designing complex, multi-tier application systems with a focus on cost, performance, and reliability tradeoffs. DOP-C02 is about operating — implementing CI/CD pipelines, automating operations, managing configurations, and responding to incidents. SAP-C02 asks what to build; DOP-C02 asks how to build and operate it. Many professionals earn both to demonstrate complete AWS mastery — SAP-C02 for architecture, DOP-C02 for DevOps automation.

Our product provides 500+ practice questions organized across all six domains with accurate weightings. Each question includes detailed explanations that explain correct answers and why each distractor is wrong — essential for building the cross-service integration thinking that Professional exams demand. You get full-length simulation exams (75 questions, 180 minutes), domain-wise practice modules (SDLC Automation, IaC, Resilient Solutions, Monitoring, Incident Response, Security), and a downloadable PDF study guide with CloudFormation template excerpts, CodeDeploy hook diagrams, IaC comparison tables, and monitoring architecture blueprints.

Study time varies significantly by background. Those with DVA-C02/SOA-C03 completed typically need 120-150 hours (3-4 months). Candidates with SAA-C03 and operational experience need 100-130 hours (2.5-3.5 months). Professionals with 1+ year DevOps hands-on experience need 80-100 hours (2-2.5 months). Experienced SREs with 2+ years can prepare in 60-80 hours. We recommend a phased approach: (1) Read the official exam guide; (2) Complete AWS Skill Builder's DOP-C02 Exam Prep course; (3) Practice hands-on with key services; (4) Use our practice tests for domain-wise assessment across three rounds; (5) Take full-length simulation exams; (6) Final review of weak areas.

CloudFormation is the primary IaC service tested, with Terraform covered as a secondary topic. For CloudFormation, expect deep questions on StackSets (multi-account deployment), Drift Detection, Change Sets, Nested Stacks, and Custom Resources (Lambda-backed). For Terraform, you should understand how it compares to CloudFormation — when to use each, state management, and module structures. AWS CDK and SAM are also in scope. The exam emphasizes knowing which IaC tool to use for specific scenarios and understanding the tradeoffs between them.

The DOP-C02 is one of the highest-regarded AWS certifications globally, often listed as a prerequisite for senior DevOps and SRE roles with compensation exceeding $150,000+ annually in the US or ¥10,000,000+ in Japan. Certified professionals are positioned for roles such as DevOps Engineer, SRE, Cloud Automation Architect, and Platform Engineer. The certification validates end-to-end DevOps capabilities — from CI/CD and IaC to monitoring, incident response, and security — making you a versatile and highly valued cloud professional. Combined with SAP-C02, you achieve full Professional-level AWS mastery.

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