SAA-C03 Question 255
Select 2A financial services company wants to deploy a latency-sensitive application for users in multiple regions around the world. The application requires consistent low latency for user requests and needs to cache frequently accessed data close to users. Which combination of AWS services and features would best address these requirements?
- A
Amazon CloudFront with edge locations for caching content
- B
AWS Global Accelerator for routing user traffic to the closest healthy endpoint
- C
Amazon S3 Standard storage class for globally caching data
- D
Amazon Route 53 for geolocation-based routing
- E
Amazon RDS Multi-AZ for replicating databases across regions
Show answer and explanation
Correct answers: A, B
Explanation
To meet the requirements of latency-sensitive applications with global users, Amazon CloudFront and AWS Global Accelerator are the best fit. CloudFront caches data at edge locations close to users, reducing latency for frequently accessed content. AWS Global Accelerator optimizes traffic routing to the closest healthy endpoint, ensuring consistent low latency for user requests. Together, they address both caching and routing needs for low-latency global applications.
- A. Correct.
Amazon CloudFront is a content delivery network (CDN) that uses edge locations to cache data closer to users, reducing latency for frequently accessed content. This makes it a suitable choice for addressing the requirement of caching data close to users.
- B. Correct.
AWS Global Accelerator improves availability and performance by routing user traffic to the closest healthy endpoint based on network conditions, which helps maintain consistent low latency globally.
- C. Incorrect.
Amazon S3 Standard is a storage class for object storage but does not provide caching functionality or edge-based distribution for global low-latency access.
- D. Incorrect.
Amazon Route 53 provides DNS-based routing, including geolocation routing, but it does not cache or optimize data delivery for low latency on its own.
- E. Incorrect.
Amazon RDS Multi-AZ is designed for high availability within a single region and does not replicate databases across multiple regions for global low-latency access.