SAA-C03 Question 257
Single answerYour company is building a global e-commerce application that requires low-latency access for users across multiple continents. The application is hosted in a primary AWS Region, but some users are experiencing high latency when accessing static assets like product images. Which approach should you implement to reduce latency for global users while minimizing costs?
- A
Use Amazon CloudFront to cache the static assets at edge locations closer to users.
- B
Deploy additional EC2 instances in multiple AWS Regions and replicate static assets across those instances.
- C
Use AWS Direct Connect to establish dedicated high-speed connections between your data center and the primary AWS Region.
- D
Configure an Amazon RDS Read Replica in multiple AWS Regions to serve the static assets.
Show answer and explanation
Correct answer: A
Explanation
Amazon CloudFront is a managed service designed specifically for reducing latency for end users by caching content at edge locations globally. It ensures that users can retrieve static assets from the nearest edge location, providing a better experience compared to accessing them from a single centralized AWS Region. This approach is the most effective and cost-efficient for the described use case.
- A. Correct.
This is the correct answer. Amazon CloudFront is a content delivery network (CDN) that caches content at edge locations around the world, reducing latency for users accessing static assets.
- B. Incorrect.
This is not a cost-effective or scalable solution. Replicating static assets across multiple EC2 instances in various Regions requires significant manual effort and incurs higher costs compared to using a CDN like Amazon CloudFront.
- C. Incorrect.
AWS Direct Connect is used for dedicated, high-speed connections between on-premises data centers and AWS Regions. It does not help reduce latency for global users accessing static assets.
- D. Incorrect.
Amazon RDS Read Replicas are designed to improve database read performance and are not intended for serving static assets like product images.