Cheat Sheet
AWS Developer Associate (DVA-C02) Cheat Sheet
By The Exam Atlas Editorial Team · Verified 2026-05-29
A final-revision summary for DVA-C02. Study aid only — no notes in the proctored exam.
Serverless building blocks
| Service | Role |
|---|
| Lambda | Run code without servers |
| API Gateway | Expose REST/HTTP APIs |
| DynamoDB | NoSQL data store |
| S3 | Object storage and static assets |
| Step Functions | Orchestrate workflows |
DynamoDB essentials
| Concept | Idea |
|---|
| Partition key | Determines data distribution |
| Sort key | Orders items within a partition |
| GSI / LSI | Global / Local Secondary Index for extra access patterns |
| Capacity | On-demand vs provisioned (with auto scaling) |
Deployment / CI/CD
| Service | Role |
|---|
| CodeCommit | Git repositories |
| CodeBuild | Build and test |
| CodeDeploy | Deploy to compute |
| CodePipeline | Orchestrate the pipeline |
| SAM / CloudFormation | Infrastructure as code |
Security in apps
| Service | Role |
|---|
| IAM roles | Least-privilege access for code |
| Cognito | User sign-up and sign-in |
| KMS | Encryption keys |
| Secrets Manager / Parameter Store | Store secrets and config |
Resilience patterns
Exponential backoff with jitter · idempotency · SQS for decoupling · dead-letter queues for failures.
FAQ
- Can I bring notes to the AWS Developer exam?
- No. It is proctored. Use this for final revision before exam day only.
Sources
