SAP-C02 Question 439
Select 4A global e-commerce platform experiences inconsistent latency when users from different regions access their website. The application is hosted in a single AWS Region with an Auto Scaling group behind an Application Load Balancer (ALB). The database is an Amazon RDS instance, and static content is served from an Amazon S3 bucket. As an AWS Solutions Architect, what combination of strategies would you recommend to improve performance for global users?
- A
Implement Amazon CloudFront to cache static content closer to users.
- B
Migrate the database to a globally-distributed Amazon DynamoDB table with global tables enabled.
- C
Enable Amazon RDS read replicas in multiple AWS Regions.
- D
Use AWS Global Accelerator to optimize routing for user requests to the ALB.
- E
Deploy the application in multiple AWS Regions and configure latency-based routing using Amazon Route 53.
Show answer and explanation
Correct answers: A, C, D, E
Explanation
To improve performance for global users, a combination of strategies that addresses both static and dynamic content is necessary. Amazon CloudFront reduces latency for static content by caching it at edge locations closer to users, while AWS Global Accelerator optimizes routing for dynamic content. Enabling RDS read replicas in multiple regions enhances read performance for global users accessing the database. Additionally, deploying the application in multiple regions and using Route 53 latency-based routing ensures users are directed to the nearest region, further minimizing latency. These strategies together improve the performance of the application for global users.
- A. Correct.
Implementing Amazon CloudFront will cache static content at edge locations closer to users, reducing latency for static assets. This is a recommended approach for global performance optimization.
- B. Incorrect.
Migrating to Amazon DynamoDB with global tables is unnecessary in this scenario, as there is no indication that the workload requires a NoSQL database or globally-distributed transactional data.
- C. Correct.
Enabling Amazon RDS read replicas in multiple AWS Regions will allow read-heavy workloads to be served locally in the regions where users are located, improving performance for database read operations.
- D. Correct.
Using AWS Global Accelerator improves the performance of dynamic content by optimizing routing and leveraging AWS's global network infrastructure. This minimizes latency for user requests to the ALB.
- E. Correct.
Deploying the application in multiple AWS Regions and using latency-based routing with Amazon Route 53 ensures that users are routed to the region with the lowest latency, improving the overall experience for global users.