Your architecture for an application currently consists of EC2 Instances sitting behind a classic ELB. The EC2 Instances are used to serve an application and are accessible through the internet. What could be done to improve this architecture if the number of users accessing the application increases regularly?

Answer options:

A.Add another ELB to the architecture.
B.Use Auto Scaling Groups.
C.Use an Application Load Balancer instead.
D.Use the Elastic Container Service.

Correct Answer – B
AWS Documentation mentions the following.
AWS Auto Scaling monitors your applications and automatically adjusts the capacity to maintain steady, predictable performance at the lowest possible cost. Using AWS Auto Scaling, it is easy to setup application scaling for multiple resources across multiple services in minutes.
For more information on AWS Auto Scaling, please visit the following URL-
https://aws.amazon.com/autoscaling/