Computer Networking
Which of the following refers to the terms "residual error rate"?

the number of bit errors per twenty four hours of continuous operation on an asynchronous line
the probability that one or more errors will be detected when an error detection mechanism is used
signal to noise ratio divided by the ratio of energy per bit to noise per hertz
None of these
The probability that one or more errors will be undetected when an error detection scheme is used

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Computer Networking
Bandlimited signal is

transmission of signals without modulation
None of these
All of these
simultaneous transmission of data to a number of stations
a signal all of whose energy is contained within a finite frequency range

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