AWS Certified Solutions Architect - Associate SAA-C03 — Topic 1 Question 174

Question

A company has a multi-tier application that runs six front-end web servers in an Amazon EC2 Auto Scaling group in a single Availability Zone behind an Application Load Balancer (ALB). A solutions architect needs to modify the infrastructure to be highly available without modifying the application. Which architecture should the solutions architect choose that provides high availability?

Accepted Answer

Correct answer: B. The correct answer is B. Option B: Modify the Auto Scaling group to use three instances across each of two Availability Zones. Auto Scaling adjusts capacity automatically to match demand, improving availability and cost efficiency. By spanning multiple Availability Zones / adding redundancy, this option provides the high availability and resilience required.

AWS Certified Solutions Architect - Associate SAA-C03 — Question 174