AWS Certified Solutions Architect – Associate (SAA-C02) — Question 131

A company runs a website on Amazon EC2 instances behind an ELB Application Load Balancer. Amazon Route 53 is used for the DNS. The company wants to set up a backup website with a message including a phone number and email address that users can reach if the primary website is down.
How should the company deploy this solution?

Answer options

• A. Use Amazon S3 website hosting for the backup website and Route 53 failover routing policy.
• B. Use Amazon S3 website hosting for the backup website and Route 53 latency routing policy.
• C. Deploy the application in another AWS Region and use ELB health checks for failover routing.
• D. Deploy the application in another AWS Region and use server-side redirection on the primary website.

Correct answer: A

Explanation

The correct answer is A because using Amazon S3 website hosting allows for a simple and cost-effective way to provide a static backup site, while the Route 53 failover routing policy ensures that users are directed to this backup site when the primary site is down. Options B, C, and D do not effectively provide a straightforward backup solution for users, as B uses latency routing which is not suitable for failover, and C and D complicate the setup unnecessarily by deploying to another region.