Review a compact AWS Certified Developer - Associate (DVA-C02) cheat sheet for Lambda, APIs, SDKs, IAM roles, DynamoDB, deployment, observability, and troubleshooting before using IT Mastery sample questions.
Use this cheat sheet to keep AWS developer decisions clear before trying the DVA-C02 sample questions. The current DVA-C02 page includes original sample questions and exam guidance while full IT Mastery practice is being prioritized.
| Item | Review cue |
|---|---|
| Exam route | AWS Certified Developer - Associate |
| Exam code | DVA-C02 |
| Items | 65 total |
| Time | 130 minutes |
| Current page status | Sample questions available |
| Best use | Practice implementation, security, deployment, and troubleshooting decisions for AWS applications |
| Domain | Weight | What to know | Common trap |
|---|---|---|---|
| Development with AWS Services | 32% | Lambda, API Gateway, DynamoDB, S3, SQS, SNS, SDKs, events | writing custom polling or state management when managed integration fits |
| Security | 26% | IAM roles, temporary credentials, secrets, encryption, authorization | using long-lived keys or broad permissions |
| Deployment | 24% | aliases, versions, CodeDeploy, CI/CD, rollback, canary releases | replacing controlled deployments with manual cutovers |
| Troubleshooting and Optimization | 18% | logs, metrics, tracing, retries, limits, throttling, cold starts | guessing the fix before checking the first useful signal |
| Distinction | Exam reflex |
|---|---|
| IAM role vs access key | Prefer roles and temporary credentials for AWS workloads. |
| SQS vs direct Lambda trigger | SQS adds buffering, retry control, and dead-letter handling. |
| API key vs authorizer | API keys identify usage. Authorizers validate identity or authorization. |
| Lambda version vs alias | Versions are immutable. Aliases point traffic to versions. |
| Conditional write vs read-then-write | Conditional writes protect concurrency in DynamoDB. |
When you miss a DVA-C02 sample, decide whether the miss was service integration, security, deployment, or troubleshooting. If security and deployment misses dominate, review SOA-C03 operational patterns as well as the DVA-C02 samples.