Computer Networking
Bandlimited signal is

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

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Computer Networking
RS-449/442-A/423-A is

None of these
the ratio of the number of data units in error to the total number of data units
a check bit appended to an array of binary digits to make the sum of the all the binary digits
a set of physical layer standards developed by EIA and intended to replace RS-232-
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

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