AWS Certified Solutions Architect - Professional SAP-C02 — Topic 1 Question 202

Question

A company needs to build a disaster recovery (DR) solution for its ecommerce website. The web application is hosted on a fleet of t3.large Amazon EC2 instances and uses an Amazon RDS for MySQL DB instance. The EC2 instances are in an Auto Scaling group that extends across multiple Availability Zones. In the event of a disaster, the web application must fail over to the secondary environment with an RPO of 30 seconds and an RTO of 10 minutes. Which solution will meet these requirements MOST cost-effectively?

Accepted Answer

Correct answer: B. The correct answer is B. Option B: Use infrastructure as code (IaC) to provision the new infrastructure in the DR Region. Create a cross-Region read replica for the DB instance. Set up AWS Elastic Disaster Recovery to continuously replicate the EC2 ins... Auto Scaling adjusts capacity automatically to match demand, improving availability and cost efficiency. Amazon EC2 provides resizable virtual servers when you need full control of the operating system. Amazon Route 53 provides DNS with health checks and routing policies for availability and latency. This option delivers the requirement at the lowest cost.

AWS Certified Solutions Architect - Professional SAP-C02 — Question 202