AWS Certified Solutions Architect – Associate (SAA-C03) — Question 53

A company is hosting a static website on Amazon S3 and is using Amazon Route 53 for DNS. The website is experiencing increased demand from around the world. The company must decrease latency for users who access the website.
Which solution meets these requirements MOST cost-effectively?

Answer options

• A. Replicate the S3 bucket that contains the website to all AWS Regions. Add Route 53 geolocation routing entries.
• B. Provision accelerators in AWS Global Accelerator. Associate the supplied IP addresses with the S3 bucket. Edit the Route 53 entries to point to the IP addresses of the accelerators.
• C. Add an Amazon CloudFront distribution in front of the S3 bucket. Edit the Route 53 entries to point to the CloudFront distribution.
• D. Enable S3 Transfer Acceleration on the bucket. Edit the Route 53 entries to point to the new endpoint.

Correct answer: C

Explanation

The correct answer is C, as using Amazon CloudFront provides a content delivery network that caches content at edge locations, significantly reducing latency for users worldwide. Option A would be more expensive and complex due to replication across regions. Option B involves additional costs and setup with Global Accelerator, and option D, while it improves transfer speed, does not offer the same latency reduction benefits as CloudFront.