What is the main advantage of transmitting voice calls using packet switching vs. circuit switching?
A) There is no advantage; voice must always be transmitted using circuit-switching.
B) Call setup is faster using packet switching.
C) The amount of bandwidth used is much larger with packet switching.
D) The voice call does not tie up the channel 100 percent of the time using packet switching.

Question

Quizplus · Accepted Answer

Packet switching allows for more efficient use of bandwidth by breaking the voice data into small packets that can be transmitted alongside other traffic. This means that the voice call does not need to tie up the channel 100 percent of the time and can share the bandwidth with other traffic. Circuit switching, on the other hand, reserves a dedicated circuit for the duration of the call, which can result in wasted bandwidth during periods of silence or low activity. Additionally, call setup can be faster with packet switching since there is no need to reserve a circuit beforehand.

What Is the Main Advantage of Transmitting Voice Calls Using