Multi-AZ language school platform combining ECS microservices, Lambda functions, and RDS replication across us-east-1a and us-east-1b availability zones. Traffic flows through WAF and CloudFront CDN to an Application Load Balancer, which routes requests to containerized services for student registration, course management, enrollment, and attendance tracking via DynamoDB and S3. RDS Primary-Standby replication ensures database resilience, while ElastiCache Redis handles session state and Cognito provides authentication. This architecture demonstrates high-availability patterns for SaaS education platforms with automatic failover, content delivery optimization, and comprehensive CloudWatch monitoring. Fork and customize this diagram on Diagrams.so to adapt subnet ranges, instance types, or add additional microservices.