Which term describes the final approach fix (FAF) in GPS navigation?

The correct term that describes the final approach fix (FAF) in GPS navigation is "BEMXI." The FAF is a significant point during the approach phase where the aircraft is established on the final approach course. In GPS operations, the FAF typically corresponds to a defined waypoint that guides pilots into the final approach.

BEMXI is a waypoint designation that helps pilots identify the exact location of the final approach fix, enabling them to transition smoothly from the en-route phase to the final approach segment. Understanding this relationship is crucial because it assists in managing altitude and speed as the aircraft nears the runway.

The other options represent different concepts in aviation navigation. The missed approach point refers to a specific location where, if the aircraft cannot land, a missed approach procedure must be initiated. Decision altitude is the altitudinal threshold where a decision to continue or abandon the approach must be made. A waypoint is a general term for a predetermined geographical position used for navigation, but in this context, BEMXI specifically identifies the FAF in GPS navigation.