A company runs a high-traffic web application that has a three-tier architecture consisting of a web layer, an application layer, and a database layer. The web layer and application layer run on Amazon EC2 instances behind an Application Load Balancer (ALB). The application layer is stateless and supports automatic scaling. The database layer uses Amazon RDS for MySQL in a Multi-AZ configuration and relies on a relational architecture.
The company is preparing for a large marketing event that is expected to drive a sharp increase in read traffic. The company must ensure that the application remains highly available and responsive under load. The company wants to scale the application ' s architecture components but does not want to modify the application.
Which combination of solutions will meet these requirements? (Select THREE.)
Select all that apply.