This Workflow Action type sends field values to external resources. Which is it?

The Workflow Action type that sends field values to external resources is the POST action. This is particularly relevant as POST requests are commonly used to submit data to be processed to a specified resource. In the context of Splunk, when a POST Workflow Action is invoked based on a selected field value, it can send that value to a web service or another external application for further processing or storage.

The significance of using POST lies in its ability to send complex data structures (as opposed to just key-value pairs) and to perform actions like creating or updating resources on a server. This aligns with the common web protocol usage where POST is used when the action involves changing server state or submitting data.

The other options represent different types of HTTP request methods, which have distinct purposes. For example, GET is typically used to retrieve data from the server, while DELETE is used specifically to remove resources. These methods do not align with the requirement of sending data for processing like the POST method does.