SAA-C03 Question 24
Single answerYour company is migrating a global application to AWS. The application requires low-latency access for users distributed across multiple continents. Additionally, the application must comply with local data residency laws in certain countries. Which design approach best addresses these requirements?
- A
Deploy the application in a single AWS Region closest to the majority of users and use edge locations for caching.
- B
Deploy the application in multiple AWS Regions and use AWS Global Accelerator to route traffic based on latency.
- C
Deploy the application in a single AWS Region and use Amazon S3 Transfer Acceleration to speed up data uploads.
- D
Deploy the application in multiple Availability Zones within a single AWS Region to ensure high availability.
Show answer and explanation
Correct answer: B
Explanation
The best approach is to deploy the application in multiple AWS Regions to reduce latency for users across different continents and comply with local data residency laws. AWS Global Accelerator further enhances performance by routing user traffic to the nearest healthy endpoint based on latency. Other options either fail to address global latency or compliance requirements.
- A. Incorrect.
Deploying in a single AWS Region and relying on edge locations for caching may reduce latency for static content but does not address latency for dynamic content or compliance with data residency laws.
- B. Correct.
Deploying the application in multiple AWS Regions ensures low latency for global users and allows compliance with local data residency requirements. AWS Global Accelerator helps route traffic efficiently based on latency and health of endpoints.
- C. Incorrect.
Amazon S3 Transfer Acceleration speeds up uploads to S3 buckets but does not address global low-latency access or compliance with data residency laws.
- D. Incorrect.
Deploying in multiple Availability Zones within a single Region ensures high availability but does not help with global low-latency access or compliance with data residency requirements.