Which combination of steps should a solutions architect take to provide high availability for this architecture?

A company has a two-tier application architecture that runs in public and private subnets Amazon EC2 instances running the web application are in the public subnet and a database runs on the private subnet. The web application instances and the database are running in a single Availability Zone (AZ).

Which combination of steps should a solutions architect take to provide high availability for this architecture? (Select TWO.)
A . Create new public and private subnets in the same AZ for high availability
B . Create an Amazon EC2 Auto Scaling group and Application Load Balancer spanning multiple AZs
C . Add the existing web application instances to an Auto Scaling group behind an Application Load Balancer
D . Create new public and private subnets in a new AZ Create a database using Amazon EC2 in one AZ
E . Create new public and private subnets in the same VPC each in a new AZ Migrate the database to an Amazon RDS multi-AZ deployment

View Answer

Answer: BE

Explanation:

You would the EC2 instances to have high availability by placing them in multiple AZs.