________ was developed in the late 1980s by BellCore to provide a more cost effective means of delivering a T1 data rate.
A)xDSL
B)HDSL
C)QAM
D)DMT

Question

Quizplus · Accepted Answer

HDSL (High-bit-rate Digital Subscriber Line) was developed by BellCore in the late 1980s as a more cost-effective means of delivering a T1 data rate over copper telephone lines compared to traditional T1 lines. xDSL, QAM, and DMT are also digital communication technologies, but they are not specifically designed for T1 data rate delivery over copper lines.

________ Was Developed in the Late 1980s by BellCore to Provide