AWS Certified Developer Associate Practice Exams

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AWS Developer – Associate Exam Facts

  • 50 scored questions plus 15 unscored questions
  • Question types are multiple choice and multiple response
  • Scaled scoring 100–1000 with a passing score of 720
  • Target candidate has 1+ year building and maintaining apps on AWS

DVA-C02 Content Domains & Weighting

  • Domain 1: Development with AWS Services – 32%
  • Domain 2: Security – 26%
  • Domain 3: Deployment – 24%
  • Domain 4: Troubleshooting & Optimization – 18%

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AWS Certified Developer – Associate Exam Topics

Exam Basics

  • Format: 50 scored questions and 15 unscored questions
  • Question types: multiple choice and multiple response
  • Scoring: scaled 100–1000; passing score 720
  • Model: compensatory — only overall exam score must pass
  • Target candidate: 1+ year hands-on building and maintaining AWS apps

Domain 1: Development with AWS Services (32%)

  • Build resilient, fault-tolerant apps (retries with backoff/jitter, DLQs; sync vs async)
  • Create and extend APIs (transformations, validation, status code overrides)
  • Write unit tests and develop with AWS SAM and service mocks
  • Use messaging and streaming services in code; interact with AWS via SDKs/APIs
  • Lambda specifics: config (env vars, memory, timeouts, concurrency, layers), events, error handling, VPC access, performance tuning
  • Work with data stores: DynamoDB keys/indexes, query vs scan, RDS, caching (read-/write-through, lazy, TTL), S3 tiers & lifecycles

Domain 2: Security (26%)

  • AuthN/AuthZ: Cognito user vs identity pools, federation (SAML/OIDC), bearer tokens (JWT/OAuth/AWS STS)
  • Policies: resource-, service-, and principal-based; apply least privilege and RBAC/ACLs
  • Encryption: at rest and in transit, client- vs server-side; KMS CMK vs AWS-managed keys, rotation
  • Sensitive data: classify PII/PHI; use Secrets Manager and Parameter Store; encrypt env vars; sanitize data

Domain 3: Deployment (24%)

  • Prepare artifacts: manage deps and config via AppConfig/Secrets/Parameter Store; package Lambda (layers, runtimes) and containers
  • Test in dev: mock integrations, Lambda versions/aliases, API Gateway stages; promote with SAM/CloudFormation
  • Automate tests: CI/CD branches/actions, create JSON test events, tag approved versions (aliases, image tags, Amplify branches)
  • Deploy with AWS services: CodePipeline/Build/Deploy/Artifact, SAM, CDK, CloudFormation, Copilot, Amplify, API custom domains
  • Use strategies: canary, blue/green, rolling; perform rollbacks; manage multi-env workflows

Domain 4: Troubleshooting & Optimization (18%)

  • Root cause: analyze logs/metrics/traces; query with CloudWatch Logs Insights; X-Ray service maps
  • Observability: structured logging; custom/embedded metrics; distributed tracing and annotations; alerting
  • Optimize: profile performance; tune memory/compute; use SQS/SNS messaging patterns and filter policies; cache by headers

Out of Scope for the Exam

  • Designing overall architectures (distributed systems, microservices, DB schemas)
  • Designing/creating CI/CD pipelines from scratch
  • Administering IAM users/groups and servers/OS
  • Designing VPC/Direct Connect networking topologies

How to Prepare

  • Study the official exam guide and task statements for each domain
  • Build hands-on with Lambda, API Gateway, DynamoDB/RDS, S3, and messaging/streaming
  • Practice CI/CD with CodePipeline/Build/Deploy and IaC (SAM/CDK/CloudFormation)
  • Drill security patterns: Cognito flows, STS, KMS, secrets management, least privilege
  • Instrument apps with CloudWatch/X-Ray; rehearse canary/blue-green and rollbacks