Computer Networking
What is a stub network?

A network with more than one exit point.
A network that has only one entry and exit point.
A network with more than one exit and entry point.
A network with only one entry and no exit point.

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

a set of physical layer standards developed by EIA and intended to replace RS-232-
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
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

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