Computer Networking
RS-232-G

specifies only the mechanical characteristics of an interface by providing a 25-pin connector
requires only 7 pin out of 25 in order to transmit digital data over public telephone lines
is an interface standard between Data terminal Equipment and Data Circuit Terminating Equipment
is an interface between two data circuit terminating equipment as examplified by a local and remote modem
None of these

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Computer Networking
What is a stub network?

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

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