SAP-C02 Question 18
Select 2Your organization is planning to deploy a global application with users distributed across multiple continents. To ensure low-latency access, high availability, and fault tolerance, you need to design the application infrastructure leveraging AWS Global Infrastructure. Which approach would best meet these requirements?
- A
Deploy application instances in multiple AWS Regions and use Amazon Route 53 latency-based routing to direct users to the nearest Region.
- B
Deploy application instances in a single AWS Region but use AWS Global Accelerator to reduce latency for users worldwide.
- C
Use Amazon CloudFront with edge locations to cache content closer to users and serve requests globally.
- D
Deploy application instances in multiple Availability Zones within a single AWS Region to ensure high availability and low latency for global users.
- E
Use AWS Outposts to deploy the application infrastructure closer to users in remote locations.
Show answer and explanation
Correct answers: A, C
Explanation
To achieve low-latency access, high availability, and fault tolerance for a global audience, deploying application instances across multiple AWS Regions is essential. Amazon Route 53 latency-based routing ensures users are directed to the nearest Region for optimal performance. Additionally, Amazon CloudFront's edge locations provide caching closer to users, further reducing latency and improving global application performance. Combining these services ensures the application meets the requirements effectively.
- A. Correct.
This is correct. Deploying instances in multiple AWS Regions ensures low latency for users in different geographic locations, and Amazon Route 53 latency-based routing further enhances performance by directing users to the nearest Region.
- B. Incorrect.
This is partially correct but not ideal. AWS Global Accelerator can improve performance by routing traffic to the optimal AWS edge location, but deploying in a single Region does not fully achieve fault tolerance or low latency for a global audience.
- C. Correct.
This is correct. Amazon CloudFront's edge locations cache content closer to users, reducing latency and improving performance globally.
- D. Incorrect.
This is incorrect. While deploying in multiple Availability Zones within a Region improves availability, it does not address global latency and fault tolerance effectively.
- E. Incorrect.
This is incorrect. AWS Outposts are designed for extending AWS infrastructure to on-premises locations, but they are not a scalable solution for global applications requiring low latency and fault tolerance.