Q8 -- This technology uses existing telephone lines to provide high-speed communication comparable to T1 lines:

E ADSL

Asymmetric Digital Subscriber Line (ADSL) uses existing telephone lines to provide high-speed connections as fast as a T1 connection at less cost.

Source: O'Leary, T. J., & O'Leary, L. I. (1999-2000). Computing essentials. Boston, MA: McGraw-Hill. (p. 111)

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