Which routing policy in Amazon Route 53 sends traffic to one specific resource?

The routing policy that sends traffic to one specific resource is Simple Routing. This policy is designed for straightforward configurations where you want to direct all traffic to a single resource, such as an IP address or an Amazon resource like an Elastic Load Balancer, without any complicated conditions or variations.

With Simple Routing, you define a single record in Route 53 that returns the IP address or endpoint of your resource. This is ideal for scenarios where you do not need to divide traffic among multiple resources or respond differently based on user location or performance metrics. It ensures that all requests are consistently directed to the intended target without the need for layers of complexity involved in other routing policies.

In contrast, other routing policies like Weighted, Geolocation, and Latency Based Routing introduce additional parameters for managing traffic, such as distributing it across multiple resources, targeting users based on their geographic location, or optimizing for the lowest latency, respectively. These intricacies do not apply when the objective is simply to route to one specific destination.