Modified Multiple Choice Which of the following use multiplexing?
A) ISDN
B) dial-up
C) T-3 lines
D) T-1 lines

Question

Quizplus · Accepted Answer

- ISDN (integrated services digital network) uses a form of multiplexing called time-division multiplexing (TDM) to allow multiple digital signals to share a single transmission line.
- T-3 lines use a form of multiplexing called inverse multiplexing to combine multiple T-1 lines into a higher bandwidth connection. 
- T-1 lines use TDM to divide a single transmission line into 24 channels, each capable of transmitting voice or data.

Modified Multiple Choice Which of the Following Use Multiplexing