AWS Certified Solutions Architect Professional SAP-C02 Practice Question

The correct answer is to deploy the application within an AWS Local Zone in the NYC metropolitan area. AWS Local Zones are a type of infrastructure deployment that places AWS compute, storage, database, and other select services closer to large population, industry, and IT centers. This is the only option that physically places the compute resources within the same metropolitan area as the stock exchange, which is essential for achieving the single-digit millisecond latency required for HFT applications.

• Deploying in the us-east-1 Region, even with a Direct Connect, is incorrect because of the physical distance. The us-east-1 region is in Northern Virginia, and the round-trip network latency to NYC would be too high for this HFT use case.
• Using AWS Global Accelerator is incorrect because it is designed to optimize the network path from global end-users to applications on AWS by routing them over the AWS global network from the nearest edge location. It does not reduce the inherent physical latency between the AWS Region where the application is hosted and a fixed, non-AWS endpoint like a stock exchange.
• Using Amazon Route 53 with Geoproximity routing is incorrect. Route 53 routing policies are used to direct end-user traffic at the DNS level. This service is not suited for optimizing latency for server-to-server communication with a fixed, external data source.