Question

________ is known as modulator it demodulator
(i) Switch
(ii) Modem
(iii) Cable
(IV) router​

Answer 1

Answer:

modulator/demodulator, a modem is a hardware device that allows a computer to send and receive information over telephone lines. ... When sending a signal, the device converts ("modulates") digital data to an analog audio signal, and transmits it over a telephone line.

Answer 2

(ii) Modem

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