Full exam simulation
65 questions · 130 minutes, 15 unscored and not identified. One question per screen, flag and strike-out, a review screen and a score report per domain — no answers until you finish.
Amazon Web ServicesDVA-C03AssociateDevelopmentAvailable
AWS Certified Developer – Associate
Develop, test, deploy and debug applications on AWS, including AI-assisted development and secure use of AI services.
Independent practice — not affiliated with or endorsed by Amazon Web Services. DVA-C03 is used only to identify the exam. Trademark notices
DVA-C02 can be taken until November 30, 2026; DVA-C03 is delivered from December 1, 2026.
Domain weights
Share of scored content per domain. Every sitting draws questions by these weights.
- D1Development with AWS Services30 %20 concepts
- D2Security26 %17 concepts
- D3Testing and Deployment22 %15 concepts
- D4Troubleshooting and Optimization22 %15 concepts
Your progress
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ESL +30
The full sitting with 30 extra minutes (160 min) — the accommodation non-native English speakers can request for exams in English.
Quick 20
20 questions · 40 min, same weights, all scored. A daily check.
Weak spots
20 questions aimed at your weakest domains, missed concepts and due reviews.
Practice builder
Pick domains, topics, how many questions and which pool (new, wrong, due, low confidence). Spaced repetition with confidence ratings, flashcards and a mistake book.
Open practiceDomain drill
One domain, up to 20 questions.
What's on the exam
Domain 1: Development with AWS Services
30 %Code for applications hosted on AWS (decoupling, sync vs async, retries, APIs, SDKs, streaming, events, AI-assisted coding, managed AI services), Lambda development and data stores including DynamoDB and caching.
Practice domain 1 →Domain 2: Security
26 %Authentication and authorization (federation, IAM roles and policies, presigned URLs, SigV4), encryption and sensitive data (KMS, ACM, secrets, PII), and securing AI service use (private access, guardrails, agent tool authorization, log protection).
Practice domain 2 →Domain 3: Testing and Deployment
22 %Preparing artifacts (dependencies, container images in ECR, configuration with AppConfig and Parameter Store), automated testing with SAM/CDK and mocks, and CI/CD deployment with CodeDeploy, CodePipeline, ECS/EKS, IaC and rollbacks.
Practice domain 3 →Domain 4: Troubleshooting and Optimization
22 %Root cause analysis with logs, metrics and traces, observability practices (structured logs, custom metrics, alerts, X-Ray, health checks) and optimization of concurrency, memory, messaging and caching.
Practice domain 4 →
Domain names and weights come from the official DVA-C03 exam guide (checked 2026-10-26). Always check it for the authoritative scope.
Sources · checked 2026-10-26
- AWS — DVA-C03 exam guide (50 scored + 15 unscored, 100–1000 pass 720, domains 30/26/22/22) ↗
- AWS — DVA-C03 guide, Domain 2 incl. new Task 2.3 AI security ↗
- AWS — Developer Associate exam page (65 questions, 130 minutes; DVA-C02 last day November 30, 2026) ↗
- AWS Training and Certification blog, September 2026 (DVA-C03 registration October 27, delivery December 1, 2026) ↗
Sample questions
Two of this exam's original questions, with the explanation you get after every answer.
Sample 1Select one
An order service calls an invoicing service synchronously. When invoicing is slow, orders fail. Which change decouples the two services with the LEAST code?
- ACall the invoicing service twice in parallel
- BIncrease the timeout of the HTTP call to 15 minutes and add exponential backoff with retries in the order service
- CHave the order service send messages to an Amazon SQS queue that the invoicing service polls
- DMerge both services into one EC2 instance
Show answer & explanation
Correct: C. A queue buffers requests so the producer does not depend on the consumer's availability or speed. Longer timeouts or merging services keep the tight coupling.
Sample 2Select 2
A developer needs to fan out one event to several independent consumers that each process every message at their own pace. Which combinations work? (Select TWO.)
- AA single SQS queue polled by all consumers
- BAn S3 Lifecycle rule
- CA DynamoDB table scanned by each consumer
- DAn SNS topic with an SQS queue subscribed for each consumer
- EAn EventBridge rule with one target per consumer
Show answer & explanation
Correct: D, E. SNS-to-SQS fan-out and EventBridge rules with multiple targets deliver a copy to each consumer. One shared queue delivers each message to only one consumer.