SAP-C02 Question 529
Select 2You are designing a multi-region architecture for a financial application hosted in AWS. The application processes sensitive data and requires low-latency communication between services in the us-east-1 and eu-west-1 regions. You also want to minimize data transfer costs as much as possible. Which combination of strategies should you implement to achieve these requirements?
- A
Use VPC peering between the VPCs in us-east-1 and eu-west-1 for inter-region communication.
- B
Set up an AWS Transit Gateway and enable inter-region peering between the Transit Gateways in us-east-1 and eu-west-1.
- C
Leverage AWS Direct Connect with a private virtual interface to connect the two regions.
- D
Use Amazon CloudFront with an origin in us-east-1 and edge locations in eu-west-1 to replicate data.
- E
Utilize AWS Global Accelerator to optimize routing and reduce latency between regions.
Show answer and explanation
Correct answers: B, E
Explanation
For low-latency and cost-effective inter-region communication, AWS Transit Gateway with inter-region peering reduces data transfer costs and simplifies network management. AWS Global Accelerator complements this by optimizing traffic routing and reducing latency across regions. The other options either do not address the requirements or are not cost-efficient solutions for this scenario.
- A. Incorrect.
VPC peering is not cost-effective for inter-region communication, as data transfer between regions incurs a standard inter-region data transfer cost. Additionally, it does not optimize latency.
- B. Correct.
AWS Transit Gateway with inter-region peering is a cost-efficient and scalable solution for inter-region communication. It offers reduced data transfer costs compared to VPC peering and simplifies network management.
- C. Incorrect.
AWS Direct Connect is designed for on-premises to AWS connectivity. It does not directly connect two AWS regions, making it unsuitable for this scenario.
- D. Incorrect.
Amazon CloudFront is primarily a content delivery network (CDN) and is not designed for low-latency, bidirectional communication between regions in this use case.
- E. Correct.
AWS Global Accelerator can optimize traffic routing and reduce latency by routing user traffic to the nearest region endpoint while maintaining the best performance across regions. This makes it a suitable solution for latency optimization in this scenario.