This figure demonstrates how the Asymmetric DSL (or ADSL) broadband technology is providing voice and data transmissions concurrently through __________.
A) time division multiplexing
B) frequency division multiplexing
C) amplitude modulation
D) frequency modulation
E) statistical time division multiplexing

Question

This figure demonstrates how the Asymmetric DSL (or ADSL) broadband technology is providing voice and data transmissions concurrently through __________. 
A) time division multiplexing 
B) frequency division multiplexing 
C) amplitude modulation 
D) frequency modulation 
E) statistical time division multiplexing

Quizplus · Accepted Answer

Asymmetric DSL (ADSL) broadband technology provides voice and data transmissions concurrently through frequency division multiplexing (FDM). The technology divides the available bandwidth on the twisted copper telephone line into different frequency channels for voice and data communication. The higher frequencies are used for data transmission, while lower frequencies are reserved for voice communication. This enables the ADSL service to transmit both voice and data simultaneously without interfering with one another.

This Figure Demonstrates How the Asymmetric DSL (Or ADSL) Broadband