Question

1. ____ uses short - range radio signals to enable computers and devices to communicate with each other. (32)

a. cellular radio
c. wi - fi
b. bluetooth
d. a hot spot

Explanation:

Bluetooth is a technology that uses short - range radio signals for communication between computers and devices. Cellular radio has a wider range, Wi - Fi is for local area network access over a relatively larger area compared to Bluetooth, and a hot spot is a location providing Wi - Fi access.

Answer:

b. Bluetooth