One of the most widely used high-speed digital lines is the ____, a DDS technology that uses two two-wire pairs to transmit full-duplex data signals at a maximum rate of 1.544 Mbps.
A)ISDN
B)ADSL
C)T1
D)T3

Question

Quizplus · Accepted Answer

T1 is a widely used high-speed digital line that uses two two-wire pairs to transmit full-duplex data signals at a maximum rate of 1.544 Mbps. ISDN and ADSL are also digital lines, but their maximum data rates are lower than T1. T3 is a higher-speed digital line with a maximum data rate of 44.736 Mbps.

One of the Most Widely Used High-Speed Digital Lines Is