CompTIA Tech+ (FC0-U71)InfrastructureEasy
A hiker uses a smartphone app that shows their exact real-time location on a trail map without any cellular signal available. Which built-in technology allows the phone to determine its location?
- AGPS
- BNFC
- CBluetooth
- DWi-Fi
Show answer & explanationAnswer & explanation
Correct answer: A. GPS
GPS (Global Positioning System) uses satellite signals to determine a device's precise geographic location and works independently of cellular or Wi-Fi networks. NFC and Bluetooth are short-range technologies, and Wi-Fi requires nearby access points.
Why the other options are wrong
- B. NFC is used for very short-range communication like payments, not location tracking.
- C. Bluetooth is short-range wireless communication, not satellite-based positioning.
- D. Wi-Fi-based location requires nearby wireless networks, unlike satellite GPS.
GPS (Global Positioning System)
A satellite-based navigation system that provides precise geographic location and timing information to compatible devices.
- Relies on signals from multiple orbiting satellites
- Works without cellular or Wi-Fi connectivity
- Common in smartphones, cars, and wearables for navigation
Memory trick: GPS = 'satellites Guide your Position on Screen.'