Computer Networking
A 2000-character text file has to be transmitted by using a 1,200 baud modem. Can you tell how long will it take?

120 seconds
12 seconds
20 seconds
2 seconds
None of these

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Computer Networking
Demodulation is the process of

converting digital signals to analog signals
dividing the high-speed signals into frequency bands
converting analog signals to digital signals
None of these
combining many low speed channels into one high speed channel

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