Which of the following wireless communication technologies uses high-frequency light waves to transmit data on an unobstructed path between nodes?
A) Bluetooth
B) wireless LAN
C) high-frequency radio
D) infrared line of sight
E) microwaves

Question

Quizplus · Accepted Answer

Infrared line of sight uses high-frequency light waves to transmit data between nodes. This technology requires an unobstructed path, as objects can interfere with the signal. Bluetooth uses radio waves, wireless LAN uses radio waves or infrared, high-frequency radio uses radio waves in a higher frequency range than traditional Wi-Fi, and microwaves use radio waves in a microwave frequency range.

Which of the Following Wireless Communication Technologies Uses High-Frequency Light