For data transmission to occur, ____ of a standard telephone line must have a dial-up modem.
A) only the sending end
B) only the receiving end
C) both the sending and receiving ends
D) neither the sending nor receiving end

Question

Quizplus · Accepted Answer

Both the sending and receiving ends of a standard telephone line must have a dial-up modem in order for data transmission to occur. The modem at the sending end converts digital data into analog signals that can be transmitted over the telephone line, while the modem at the receiving end converts the analog signals back into digital data. Without both modems, the data cannot be properly transmitted and received over the telephone line.

For Data Transmission to Occur, ____ of a Standard Telephone