_______ used to be the main way all users connected to the Internet.
A) PSTN
B) PIRC
C) PWEB
D) PTML

Question

Quizplus · Accepted Answer

PSTN stands for Public Switched Telephone Network and was the primary way for users to connect to the internet in the past. It uses copper wires and circuit-switching technology to transmit data over the telephone network. However, with the advent of broadband and other advanced technologies, PSTN has become less popular.

_______ Used to Be the Main Way All Users Connected