What is the transmission media of a dial-up line have?

Answer 1

Dial-up pertains to a telephone connection in a system of many lines shared by many users. A dial-up connection is established and maintained for a limited time duration. The alternative is a dedicated connection, which is continuously in place. Dial-up lines are sometimes called switched lines and dedicated lines are called nonswitched lines. A dedicated line is often a leased line that is rented from a telephone company.

A dial-up connection can be initiated manually or automatically by your computer's modemor other device.

Dial-up networking is an important connection method for remote and mobile users. A dial-up line is a connection or circuit between two sites through a switched telephone network. In the data communication world, a dial-up line forms a link between two distant computers or local area networks. Dial-up lines provide any-to-any connections. The originating site can call any other site, unlike dedicated leased lines that provide a permanent connection between two sites. Modems are required on both ends of a dial-up line. The transmission rate can be as high as 56 Kbits/sec.

Dial-up lines can be aggregated, meaning that multiple dial-up lines can be combined to improve the capacity. The MLPPP (Multilink PPP) protocol allows users to dial a remote system (usually an ISP) and connect with a single line. Once authenticated, a second line is dialed automatically. The throughput increases from 56 Kbits/sec to 112 Kbits/sec.]

• • Costs no more than making regular call
  • Computers at any two locations can establish a connection using modems and telephone network