Computer Networking
RS-232-G

is an interface between two data circuit terminating equipment as examplified by a local and remote modem
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
specifies only the mechanical characteristics of an interface by providing a 25-pin connector
None of these

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Computer Networking
Demodulation is a process of

performing data description.
converting digital to analog signals
multiplexing various signals into one high speed line signals
converting analog to digital signals

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Computer Networking
Bus is

None of these
a continuous frequency capable of being modulated or impressed with a second signal
the condition when two or more stations attempt to use the same channel at the same time
one or more conductors that some as a common connection for a related group of devices
a collection of interconnected functional units that provides a data communications service among stations attached to the network

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