Computer Networking
Compared to analog signals, digital signals

both A and B
None of these
are more accurate
allow faster transmission
All of these

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Computer Networking
Demodulation is a process of

converting analog to digital signals
multiplexing various signals into one high speed line signals
converting digital to analog signals
performing data description.

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Computer Networking
The difference between a multiplexer and a statistical multiplexer is

Statistical multiplexers need buffers while multiplexers do not need buffers
None of these
Multiplexer use X.25 protocol, while statistical multiplexers use the Aloha protocol
Multiplexers use Time Division Multiplexing (TDM) while statistical multiplexers use Frequency Division Multiplexing (FDM)
Multiplexers often waste the output link capacity while statistical multiplexers optimize its use

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