In your AWS account, you have configured three Application Load Balancers to route the traffic, and each ALB has its own target group. As the traffic keeps growing, the cost of the Elastic Load Balancers increases as well. Which method would you take to reduce the load balancer cost?

Answer options:

A.Configure the Application Load Balancers as the spot ones.
B.Use one ALB instead of three. Attach all three target groups in the ALB.C.Move the Application Load Balancers to the US East (N.Virginia) region.
D.Install an ACM certificate in each Application Load Balancer.

Correct Answer – B
Option A is incorrect: Because Application Load Balancers do not have the spot type.
Option B is CORRECT: Because users are charged for the time, the Application Load Balancers are running. The cost will be reduced if only one ALB is used.
Option C is incorrect: Because this method is not applicable if the application cannot be moved to another region. ALB may not be cheaper in the US East (N.Virginia) region too.
Option D is incorrect: Because installing a certificate does not help to reduce the cost.
Reference:
https://aws.amazon.com/elasticloadbalancing/pricing/