DOP-C02 deep review — September 28, 2026

Read the complete guide, 140 knowledge/skill bullets across 19 tasks, root, service list and credential page. Broad objectives match the accepted baseline. Korean delivery retirement after December 31, 2026 remains unchanged; no overall exam retirement was found in the checked sources.

Learning improvements

Add native ECS controller/strategy choices, deployment evidence, metric streams versus log subscriptions, normalized queue scaling and X-Ray instrumentation maintenance. Record Proton's October 7 support end, historical OpsWorks/CodeStar shutdown, restricted Incident Manager/Change Manager/Audit Manager access and CodeCommit reopening. New learner labs should use eligible services.

Five original decisions cover canary metric dilution, backlog targets, full RTO/RPO, duplicate remediation and schema-compatible promotion. Ten local arithmetic assertions passed. Preserve 42 answers, correcting the queue scaling explanation. Eight cloud labs remain proposed.

Sources and boundaries

The May 8 ECS article contributes selected architecture, rollback and prerequisite reading. Its commands were not executed. Qualify rollback latency and schema compatibility; error counts need a request denominator to become rates. The September 21 update adds useful deployment evidence.

The App Runner product page says April 30, 2026 while its API notice says March 31. Keep the exact historical closure date blocked; both sources exclude new customers now. Scope lists are not availability guarantees.

Pluralsight confirms eight courses/35 hours, but its overview retains old domain labels and OpsWorks references. Dojo confirms its public course metadata, including a 65-question course test versus 75 on the actual exam; qualify exam-feedback marketing. Udemy content was blocked and Skill Builder/Whizlabs shells did not verify detailed lessons. No paid content, AWS account, cloud lab or live deployment was used. Human review remains pending.

The operational receipt records hashes, objective mappings, evidence and validation. Accepted snapshots remain unchanged.