Learn how to build a three-tier application using AWS. The three stages of an application layer are the Web Tier, Application Tier, and Data Tier. The Web Tier is responsible for presenting information to the user, the Application Tier processes user requests and generates responses, and the Data Tier stores and retrieves data. Follow step-by-step instructions to create a functioning VPC, EC2 instances, a LoadBalancer, and an RDS database.
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