Which HTTP method is used to replace data at a specific destination?

The correct choice is the method that serves the purpose of replacing data at a specific destination. The PUT HTTP method is designed specifically for updating a resource or replacing an entire resource at a given URI. When a client sends a PUT request, it typically includes the full representation of the resource that should reside at the specified destination. If the resource does not exist, it can also create a new resource as specified by the URI.

In the context of RESTful services, this method signifies idempotency, meaning that making multiple identical requests results in the same resource state on the server, ensuring consistency and predictability when replacing the resource.

By contrast, the other methods have different functionalities. For example, POST is generally used for creating new resources or triggering operations, GET is designed for retrieving data without modifying it, and PATCH is typically used for making partial updates to a resource rather than replacing it entirely. Thus, PUT is the appropriate choice when the intent is to replace data at a specific location.