AWS DevOps Engineer Professional (DOP-C02) prep, adaptive plan with ARIA
The AWS Certified DevOps Engineer Professional (DOP-C02) is the operations-and-automation pro-tier cert. 180 minutes, 75 questions, recommended for candidates who already hold an AWS associate cert. Stems are dense, often a paragraph long, with answer choices that differ by a single tool or condition.
What the exam is
Six domains:
| Domain | Weight |
|---|---|
| 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% |
Passing score 750 out of 1000.
How ARIA preps you for it
The CAT eval lands a per-domain skill estimate. Most candidates land heavy on SDLC Automation and IaC, because the CodePipeline, CodeBuild, CloudFormation, and OpsWorks question patterns are unforgiving on edge-case behavior. The roadmap weights phases to your gaps.
The error backlog tags every miss by service group (CI/CD, IaC, monitoring, incident response, security automation) and by trap pattern (over-engineered answer, deprecated service, missing IAM permission). Pro-tier traps need spaced exposure to retire.
Common pitfalls on this cert
Picking the most-features answer. AWS pro stems often include a "complete" option that uses six services. The right answer usually uses two. Read the question for what is actually required, not what would be possible.
Confusing CodeDeploy hooks across compute targets. The hook lifecycle differs between EC2, Lambda, and ECS. Mixing them up costs a chunk of SDLC Automation points.
Underestimating CloudWatch and Systems Manager weight in incident response. These two services span half the Incident and Event Response domain.
Prerequisite
AWS recommends two years of AWS experience and at least one associate cert (Solutions Architect, Developer, or SysOps). The exam is hard if you skip the associate level.
The pass guarantee
Same five conditions: all milestones done, all phases done, two mocks at target or above, one gauntlet at eighty percent or above, live readiness eighty or higher. Sit DOP-C02 inside the 60-day window after eligibility, fail, get a full refund of the Exam Ready plan.