Computer Networking
Error rate is

None of these
a code in which each expression conforms to specific rules of construction, so that if certain errors occur in an expression, the resulting expression will not conform to the rules of construction and
a check bit appended to an array of binary digits to make the sum of all the binary digits.
the ratio of the number of data units in error to the total number of data units
an error-detecting code based on a summation operation performed on the bits to be checked.

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Computer Networking
Bandlimited signal is

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

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