Which of the following statements is true about communication lines used by organizations to connect to the Internet?
A) A T3 line uses two pairs of copper wires to carry up to 24 simultaneous conversations.
B) A T3 line is more widely used than a T1 line.
C) A T3 line is a digital communication link that supports transmission rates of 43-45 Mbps.
D) A T1 line actually consists of 672 channels, each supporting rates of 64 Kbps.

Question

Quizplus · Accepted Answer

A T3 line is a digital communication link that supports transmission rates of 43-45 Mbps. A T1 line consists of 24 channels, each supporting rates of 64 Kbps, not 672 channels as stated in option D. Option A is describing a different type of communication line (an analog line) and option B is incorrect as T1 lines are more commonly used than T3 lines.

Which of the Following Statements Is True About Communication Lines