Multiple choice

What is the requirement of half duplex operations?

  1. Noiseless channels

  2. Modem at both ends

  3. High speed links

  4. None of the above

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

All the above answers are wrong, because half duplex operations involves data flow in only one direction at a time. It is a two wire transmission with medium cost and efficiency.