Computer Networking
To make possible the efficient on-line servicing of many teleprocessing system users on large computer systems, designers are developing

communication systems
All of these
None of these
multiprogramming systems
virtual storage systems

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Computer Networking
Parity bit is

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
None of these
an error-detecting code based on a summation operation performed on the bits to be checked.
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 all the binary digits.

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