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Question

The device that permits electrical digital signal to be transmitted to a server over regular telephone line is a

A
Multiplexer
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B
Modem
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C
Cluster controller
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D
Front end processor
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Solution

The correct option is C Modem

The device that permits electrical digital signal to be transmitted to a server over regular telephone line is a Modem

Modem is short for "Modulator / Demodulator." It is a hardware component that allows a computer or other device, such as a router or switch, to connect to the Internet. It converts or "modulates" an analog signal from a telephone or cable wire to a digital signal that a computer can recognize.

A modem is a device that provides access to the Internet (see below). The modem connects to your ISP, which typically provides either cable or DSL Internet service. Cable modems have a coaxial (or "coax") connection, which is the same type of connector found on a TV or cable box.

Modem stands for MOdulator/DEModulator. A modem converts digital signals generated by the computer into analog signals which can be transmitted over a telephone or cable line and transforms incoming analog signals into their digital equivalents.


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