Which solution accomplishes this with the LEAST amount of effort?

An application is running on Amazon EC2 instances behind an Application Load Balancer (ALB). The instances are configured in an Amazon EC2 Auto Scaling group. A SysOps Administrator must configure the application to scale based on the number of incoming requests.

Which solution accomplishes this with the LEAST amount of effort?
A . Use a simple scaling policy based on a custom metric that measures the average active requests of all EC2 instances
B . Use a simple scaling policy based on the Auto Scaling group GroupDesiredCapacity metric
C . Use a target tracking scaling policy based on the ALB’s ActiveConnectionCount metric
D . Use a target tracking scaling policy based on the ALB’s RequestCountPerTarget metric

View Answer

Answer: A