SAA-C03 Question 447
Select 2A company is deploying a global application with users in North America, Europe, and Asia. The application requires low-latency access for users in all regions and must remain highly available even if an entire AWS Region becomes unavailable. Which design approach aligns with these requirements?
- A
Deploy the application across multiple Availability Zones within a single AWS Region to ensure low latency and high availability.
- B
Deploy the application in multiple AWS Regions and configure latency-based routing in Amazon Route 53.
- C
Deploy the application in a single AWS Region with Amazon CloudFront to cache content globally.
- D
Deploy the application across multiple AWS Regions and use AWS Global Accelerator to route traffic for optimal performance.
- E
Use a single AWS Region with Multi-AZ deployments and enable AWS Direct Connect for global users.
Show answer and explanation
Correct answers: B, D
Explanation
Meeting the requirements of low latency for global users and high availability in the event of a regional failure requires deploying the application in multiple AWS Regions. Latency-based routing in Amazon Route 53 ensures that users are directed to the nearest Region, while AWS Global Accelerator optimizes performance and provides failover capabilities. Deploying in a single Region, even with advanced features like Multi-AZ or CloudFront, does not fully meet the requirements.
- A. Incorrect.
Deploying within a single AWS Region, even across multiple Availability Zones, ensures high availability within that Region but does not address low latency for geographically distant users or resilience against a regional failure.
- B. Correct.
Deploying in multiple AWS Regions with latency-based routing in Amazon Route 53 ensures that users are routed to the nearest Region, minimizing latency, and provides resilience against regional failures.
- C. Incorrect.
A single AWS Region with Amazon CloudFront improves content delivery globally but does not ensure high availability if the Region experiences a failure.
- D. Correct.
Deploying across multiple AWS Regions with AWS Global Accelerator enhances both latency and availability by routing traffic to the optimal Region and providing failover capabilities.
- E. Incorrect.
Using a single AWS Region with Multi-AZ deployments and AWS Direct Connect may improve performance for some users, but it does not provide low latency for global users or resilience against a regional failure.