A. Deploy an Application Load Balancer (ALB) that is mapped to a public subnet in each Availability Zone for the web tier. Deploy Amazon EC2 instances as web servers in each of the private subnets. Configure the web server instances as the target group for the ALB. Use Amazon EC2 Auto Scaling for the web server instances.
B. Deploy an Application Load Balancer (ALB) that is mapped to a public subnet in each Availability Zone for the web tier. Deploy Amazon EC2 instances as web servers in each of the public subnets. Configure the web server instances as the target group for the ALUse Amazon EC2 Auto Scaling for the web server instances.
C. Deploy a new Application Load Balancer (ALB) to a private subnet in each Availability Zone for the application tier. Deploy Amazon EC2 instances as application servers in each of the private subnets. Configure the application server instances as targets for the new ALB. Configure the web server instances to forward traffic to the new ALB. Use Amazon EC2 Auto Scaling for the application server instances.
D. Deploy a new Application Load Balancer (ALB) to a private subnet in each Availability Zone for the application tier. Deploy Amazon EC2 instances as application servers in each of the private subnets. Configure the web server instances to forward traffic to the application server instances. Use Amazon EC2 Auto Scaling for the application server instances.
E. Deploy an Amazon RDS Multi-AZ DB instance. Configure the application to target the DB instance.
F. Deploy an Amazon RDS Single-AZ DB instance with a read replica in another Availability Zone. Configure the application to target the primary DB instance.
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