AWS DevOps Engineer Professional (DOP-C02): Complete Exam Guide

Prerequisites and Exam Overview

The AWS Certified DevOps Engineer Professional (DOP-C02) is one of two AWS Professional-level credentials. AWS recommends holding either the AWS Certified Developer Associate or the AWS Certified SysOps Administrator Associate before attempting the DOP-C02, along with two or more years of hands-on experience provisioning, operating, and managing AWS environments. The exam consists of 75 questions (65 scored, 10 unscored) with a 180-minute time limit and a passing score of 750 out of 1000.

Professional-level AWS exams are notably harder than associate exams. Questions are longer, scenarios are more complex, and multiple answers are often partially correct — you must identify the most operationally sound solution. Expect deep scenario questions about failure modes, cost optimization trade-offs, and security at scale.

The Six DOP-C02 Exam Domains

• SDLC Automation (22%): The largest domain. Covers CI/CD pipeline design, testing strategies (unit, integration, canary, blue/green), deployment strategies, and automation of build and release processes. AWS CodePipeline, CodeBuild, CodeDeploy, and CodeCommit are all heavily featured.
• Configuration Management and IaC (17%): CloudFormation (stacks, StackSets, drift detection, change sets), AWS CDK, AWS Systems Manager (SSM Documents, Parameter Store, Patch Manager), and OpsWorks. Know the difference between CloudFormation change sets and drift detection.
• Resilient Cloud Solutions (15%): Multi-region architectures, Route 53 routing policies (failover, weighted, latency), Auto Scaling strategies, and disaster recovery patterns (backup/restore, pilot light, warm standby, multi-site active/active).
• Monitoring and Logging (15%): CloudWatch (metrics, logs, alarms, dashboards, Contributor Insights), AWS X-Ray, CloudTrail, and EventBridge rules for event-driven automation. Know how to architect a centralized logging solution across multiple AWS accounts.
• Incident and Event Response (14%): Auto Scaling lifecycle hooks, SNS/SQS for event-driven notifications, automated remediation with Systems Manager Automation runbooks, and AWS Config rules with auto-remediation actions.
• Security and Compliance (17%): IAM roles for CI/CD pipelines, Secrets Manager vs. Parameter Store, AWS Config for compliance drift detection, Security Hub, and cross-account deployments using IAM role assumption.

CI/CD on AWS: The Core of the Exam

The DOP-C02 places CI/CD pipeline design at the center of nearly every domain. You need to understand the four AWS developer tools as an integrated system:

• AWS CodeCommit: Managed Git repositories. Know how to trigger CodePipeline from a CodeCommit push via EventBridge rules or source action configuration.
• AWS CodeBuild: Managed build service. Understand buildspec.yml structure, environment variables, build caching (S3 and local), and how to run unit tests and publish test reports to CodeBuild Test Reports.
• AWS CodeDeploy: Manages deployments to EC2, Lambda, and ECS. Know all deployment configurations: AllAtOnce, HalfAtATime, OneAtATime, and custom configurations. For Lambda, understand canary and linear deployment with automatic rollback on CloudWatch alarm breach.
• AWS CodePipeline: Orchestrates the pipeline. Know how to add manual approval actions, cross-region actions, and cross-account deployments. Understand how to use pipeline variables and how EventBridge triggers pipelines.

IaC with CloudFormation and CDK

CloudFormation is tested extensively. Master these concepts: nested stacks vs. StackSets, the cfn-signal helper for waiting on EC2 configuration, CloudFormation custom resources backed by Lambda for extending functionality, and the deletion policy attribute for protecting stateful resources like RDS. For AWS CDK, understand that CDK synthesizes to CloudFormation templates and that CDK constructs come in three levels: L1 (raw CloudFormation), L2 (opinionated defaults), and L3 (patterns).

Recommended Study Resources

Stephane Maarek's DOP-C02 course on Udemy is the most comprehensive video resource available. Pair it with Tutorials Dojo practice exams, which are widely regarded as the best predictor of actual DOP-C02 question difficulty. Plan for at least 60 hours of study — this is not an exam you can pass in two weeks without prior AWS Professional experience. Visit our AWS certification guides for related articles on the AWS Developer Associate and Solutions Architect paths.