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      • 1. IAM (Identity & Access Management)
      • 2. KMS (Key Management Service) — Foundations
      • 3. VPC Fundamentals
      • 4. Route 53
      • 5. EC2
      • 6. Lambda
      • 7. ASG
      • 8. ELB
      • 9. S3
      • 10. DynamoDB
      • 11. Error Handling & Retry Patterns
      • 12. SQS
      • 13. SNS
      • 14. EventBridge
      • 15. Kinesis Data Streams
      • 16. Step Functions
      • 17. API Gateway
      • 18. Cognito
      • 19. CI/CD (CodeCommit, CodeBuild, CodeDeploy, CodePipeline)
      • 20. SAM (Serverless Application Model)
      • 21. CloudFormation
      • 22. CDK
      • 23. Elastic Beanstalk
      • 24. AppConfig
      • 25. CloudWatch
      • 26. X-Ray
      • 27. CloudTrail
      • 28. KMS
      • 29. Secrets Manager & SSM Parameter Store
      • 30. ACM / ACM Private CA
      • 31. Macie
      • 32. ECS
      • 33. ECR
      • 34. Fargate
      • 35. RDS
      • 36. Aurora

      API Layer & Authentication