Question

Digital recording and transmission often requires the signal to be transmitted using a code. Which statement would suggest an advantage of this fact?
A. Coding requires all users to have a method to decode information.
B. Coding may require more time to record information.
C. Coding of the signal can keep the information secret during transport.
D. Coded information may require larger bandwidth to transmit.

Answer 1

C. Coding of the signal can keep the information secret during transport — this is an advantage (encryption/confidentiality).