- The three-tier architecture is the most popular implementation of a multi-tier architecture and consists of a single presentation tier, logic tier, and data tier. The following illustration shows an example of a simple, generic three-tier application.
- Custom VPC
- 2 Subnets (Public)
- 1 Subnet (Private)
- 3 EC2 Instances
- Security Group
- Elastic IP
- NAT Gateway
- Internet Gateway
- Route Table
- Application Load Balancer
- Apache Webserver
- MySQL DB (server0)