RAS question
Which of the following describes 'Geofencing' technology?
Correct answer: (D) Creating virtual boundaries around a geographical location using GPS/RFID/Wi-Fi.
Geofencing is the creation of a virtual boundary around a geographical location, using technologies such as GPS, RFID, Wi-Fi or cellular data so that actions can be triggered when a device enters or exits that area.
Explanation
Geofencing is not a physical fence or a manufacturing process; it is a digital boundary tied to a real location. The FCC describes geofencing as creating a virtual boundary around a physical location, with a radiofrequency device using geolocation capability to determine whether its coordinates fall within a defined geographic area. That matches the MCQ explanation: GPS, RFID, Wi-Fi or cellular data can define the area, and the system can trigger notifications or alerts when a device enters or exits it. The key idea is location-aware automation: the boundary is virtual, but it is mapped to an actual place.
Why the other options are wrong
- (A) A physical fence is a material barrier, while geofencing creates a virtual boundary linked to a geographical area.
- (B) Geofencing does not manufacture fences; it uses location-based digital methods to define and monitor a virtual area.
- (C) A geological survey studies earth or rock features, whereas geofencing is a digital technology for location-based boundary detection.
Concept
This tests the Science and Technology syllabus concept of location-based digital services. It recurs in RAS because exam questions often check whether aspirants can distinguish a technology's literal-sounding name from its actual functional meaning.