SAP-C02 Question 265
Select 4You are designing a global application that must serve users in multiple regions with low latency. The application uses AWS services such as Amazon S3 for object storage, Amazon RDS for database requirements, and Amazon CloudFront for content delivery. The solution must ensure high availability, fault tolerance, and optimal performance. Which architectural choices should you implement to meet these requirements?
- A
Enable Amazon S3 Cross-Region Replication to replicate objects across regions.
- B
Deploy Amazon RDS in a single region and enable Multi-AZ for high availability.
- C
Use Amazon CloudFront to serve content globally through edge locations.
- D
Enable AWS Global Accelerator to improve application performance and availability.
- E
Deploy Amazon RDS instances in multiple regions and configure them with cross-region read replicas.
Show answer and explanation
Correct answers: A, C, D, E
Explanation
To design a global application with high availability, fault tolerance, and optimal performance, you must utilize AWS services designed for global infrastructure. Amazon S3 Cross-Region Replication ensures data redundancy across regions, Amazon CloudFront leverages edge locations for low-latency content delivery, AWS Global Accelerator enhances performance by routing traffic through AWS's global network, and deploying Amazon RDS with cross-region read replicas ensures both low-latency and fault tolerance for database operations. While Multi-AZ improves availability within a region, it does not address global performance needs.
- A. Correct.
Correct: Amazon S3 Cross-Region Replication ensures that objects are replicated to a secondary region, improving fault tolerance and availability for global users.
- B. Incorrect.
Incorrect: While Multi-AZ improves availability within a single region, it does not address low latency or fault tolerance for global users.
- C. Correct.
Correct: Amazon CloudFront uses a global network of edge locations to deliver content to users with low latency and high performance.
- D. Correct.
Correct: AWS Global Accelerator improves global application performance by routing traffic to the nearest healthy endpoint using the AWS global network.
- E. Correct.
Correct: Deploying Amazon RDS instances in multiple regions with cross-region read replicas improves database availability and provides lower latency for users in different regions.