_____, with the shortest range of any wireless network, is designed to be used with contactless credit cards.
A) Near-field communications
B) Bluetooth
C) Ultra-wideband
D) Wi-Fi
E) Infrared

Question

Quizplus · Accepted Answer

Near-field communications or NFC has a very short range, typically only a few centimeters, which is ideal for use with contactless credit cards. Bluetooth, ultra-wideband, Wi-Fi and infrared all have longer range and are not designed for such close-range interactions.

_____, with the Shortest Range of Any Wireless Network, Is