Question

Most common channel used by networks today is?

• A. Internet
• B. Telephone lines
• C. Satellite
• D. Mail

Answer 1

The correct option is B Telephone lines

Most common channel used by networks today is telephone.

In telephony, common-channel signaling (CCS) is the transmission of signaling information (control information) on a separate channel than the data, and, more specifically, where that signaling channel controls multiple data channels.

In telecommunications in general, a channel is a separate path through which signals can flow.

In the public switched telephone network (PSTN), a channel is one of multiple transmission paths within a single link between network points.