What type of routing in Route 53 directs traffic to the resource with the lowest latency?

Latency Based Routing in Amazon Route 53 is designed specifically to direct traffic to the resource that offers the lowest latency for the end user. This approach enhances user experience by minimizing response times, as it intelligently routes requests based on the current latency of resources located in different regions.

When a user makes a DNS query, Route 53 evaluates the latency for each available resource and selects the one that can provide the fastest response. This is particularly beneficial for applications that need to ensure quick accessibility across diverse geographical locations, optimizing the performance of your application for users globally.

In contrast, other routing policies serve different purposes. Weighted Routing allows for distributing traffic across multiple resources based on assigned weights but does not consider latency. Failover Routing is used primarily for providing redundancy; it directs traffic to a standby resource only if the primary resource fails. Simple Routing operates on a straightforward basis, directing traffic to a single resource without evaluating latency or other factors. Therefore, Latency Based Routing is the optimal choice for directing traffic based on responsiveness.