Which of the following technique is used in high speed modem ?

[ A ] TDM
[ B ] PCM
[ C ] QAM
[ D ] FDM
[ E ] None of these

Answer : Option C

Explanation :

QAM (Quadrature Amplitude Modulation), is the modulation scheme used in cable plants. RAM is how the modem encodes digital information to be sent over the RF interface of the modem.

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