Modulation and demodulation is performed by (a) Microwave (b) Satellite (c) Modem -Technology

Modulation and demodulation is performed by (a) Microwave (b) Satellite (c) Modem -Technology
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Answer :

(c) Modem converts digital signals to analog signals or analog signals to digital signals for the purpose of transmitting data over telephone lines or vice-versa.
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