AWS Multi-AZ Three-Tier Cloud Architecture

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About This Architecture

Multi-AZ three-tier AWS architecture with CloudFront CDN, AWS WAF, and Route 53 distributing traffic across two availability zones for fault tolerance. Application tier spans EC2, ECS containers, and Lambda functions behind Application Load Balancers in each AZ, while data tier uses RDS Primary/Standby replication and DynamoDB with cross-AZ replicas. CloudWatch monitoring and IAM policies enforce observability and least-privilege access across compute, storage, and database layers. Fork this diagram to customize subnets, instance types, or add additional services like ElastiCache or SNS for your production workload. The architecture demonstrates AWS best practices for zero-downtime deployments and disaster recovery within a single region.

People also ask

How do I design a highly available three-tier AWS application across multiple availability zones?

This diagram shows a production-grade multi-AZ architecture using CloudFront and AWS WAF for edge protection, Route 53 for DNS failover, and Application Load Balancers distributing traffic to EC2, ECS, and Lambda across AZ-1 and AZ-2. RDS Primary/Standby replication and DynamoDB replicas ensure data durability, while CloudWatch and IAM enforce monitoring and security.

AWS Multi-AZ Three-Tier Cloud Architecture

AutoadvancedAWSMulti-AZThree-Tier ArchitectureHigh AvailabilityCloudFrontRDS
Domain: Cloud AwsAudience: AWS solutions architects designing highly available multi-tier applications
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Created by

March 8, 2026

Updated

March 8, 2026 at 8:13 PM

Type

architecture

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