Question

Which telecommunications device is widely used in industries that require closed communication?

A. fixed-line telephones
B. mobile phones.
C. satphones
D. walkie-talkies
E. small phones

Answer 1

D. walkie-talkies

Explanation:

walkie-talkies are used in industries that require closed communication

Answer 2

The telecommunications device that is widely used in industries that require closed communication are walkie-talkies. Correct answer: D

Walkie-talkies are hand-held, portable, two-way radio transceivers which enable secure communication between the two points, without being part of a network.