Question
As part of a project to modernize a sports stadium and improve the customer service experience for fans, the stadium owners want to implement a new wireless system. Currently, all tickets are electronic and managed by the stadium mobile application. The new solution is required to allow location tracking precision within 5ft (1.5m) of fans to deliver the following services:
- Emergency/security assistance
- Mobile food order
- Event special effects
- Raffle winner location displayed on the giant stadium screen
Which of the following technologies enables location tracking?
- A. SSID
- B. BLE Correct
- C. NFC
- D. IoT
Explanation
Bluetooth Low Energy beacons and direction finding (angle of arrival or departure) let a phone app locate a user indoors to within a meter or two, which meets the 5ft requirement across a large venue. An SSID is just a wireless network name, NFC works only at a few centimeters and cannot track people moving around, and IoT is a broad category rather than a positioning technology.
