AWS Developer Associate: applications and operations

Objectives and progression

Seven lessons, 35 questions, and five original AWS application cases with an internal 26-decision assessment. Development, identities, secrets, data, artifacts, canary, and troubleshooting in fictional banking scenarios. Guided introduction without exhaustive coverage, executable labs, or full exam reproduction. DVA-C03 announced, with registration from 2026-10-27. Official sources conflict: the exam page lists the last DVA-C02 date as 2026-12-01; the September announcement lists 2026-11-30 and DVA-C03 launch on 2026-12-01. Confirm scheduling with the provider. This content prepares for DVA-C02 without claiming DVA-C03 coverage.

Audience: Developers, APS professionals, and technical managers working with AWS applications and releases.

Prerequisites: AWS fundamentals, programming, HTTP, and CI/CD basics. AWS recommends practical experience; this path does not replace it.

255 estimated study minutes

• Develop idempotent consumers and handle integration failures.
• Choose data guarantees and implement correct pagination.
• Distinguish authentication, authorization, and secret lifecycle.
• Prepare artifacts, tests, gradual deployment, and recovery.
• Interpret telemetry and assess capacity, latency, and cost.

Modules

1. Events, retries, and idempotency
2. Data, concurrency, and pagination
3. Identities and resource authorization
4. Secrets, keys, and useful logs
5. Artifacts, tests, and environments
6. Gradual deployment and recovery
7. Diagnosis, capacity, and cost

Continue learning

AWS

• AWS Certified Cloud Practitioner
• AWS Certified Solutions Architect Associate
• Python
• CI/CD
• Production Support L3

References and version

DVA-C02; exam guide 2.1

• AWS Certified Developer - Associate · 2026-09-29
• DVA-C02 exam guide · 2026-09-29
• DVA-C02 guide revisions · 2026-09-29
• AWS certification updates September 2026 · 2026-09-29
• Lambda with SQS · 2026-09-29
• SQS event source error handling · 2026-09-29
• Configure SQS event source mappings · 2026-09-29
• AWS SDK retry behavior · 2026-09-29
• Circuit breaker pattern · 2026-09-29
• EventBridge event patterns · 2026-09-29
• DynamoDB conditional writes · 2026-09-29
• DynamoDB query pagination · 2026-09-29
• DynamoDB read consistency · 2026-09-29
• DynamoDB query filters · 2026-09-29
• DynamoDB transactions · 2026-09-29
• Lambda execution roles · 2026-09-29
• IAM policy evaluation · 2026-09-29
• Cognito JWT verification · 2026-09-29
• S3 presigned URLs · 2026-09-29
• KMS key policies · 2026-09-29
• Retrieve secrets with SDK · 2026-09-29
• Secret rotation · 2026-09-29
• Lambda versions · 2026-09-29
• CodeBuild buildspec reference · 2026-09-29
• CloudFormation change sets · 2026-09-29
• Gradual SAM deployments · 2026-09-29
• CloudWatch Logs Insights · 2026-09-29
• Lambda tracing · 2026-09-29
• Lambda reserved concurrency · 2026-09-29
• Lambda memory configuration · 2026-09-29
• Lambda metric types · 2026-09-29
• CloudWatch metric concepts · 2026-09-29
• Lambda best practices · 2026-09-29
• DVA-C02 domain 1 · 2026-09-29
• DVA-C02 domain 2 · 2026-09-29
• DVA-C02 domain 3 · 2026-09-29
• DVA-C02 domain 4 · 2026-09-29
• Application authorization · 2026-09-29
• Application logging · 2026-09-29