Computer Networking
In CRC the quotient at the sender

is the remainder
becomes the divisor at the receiver
becomes the dividend at the receiver
is discarded

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Computer Networking
A WATS arrangement

is less expensive than flat-rate service only when the number of calls is large and the duration of each is short
is never less expensive than flat-rate service
is always less expensive than flat-rate service
is less expensive than flat-rate service only when the number of calls is small and the duration of each is long
None of these

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Computer Networking
Demodulation is the process of

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

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