Computer Networking
Which of the following does not allow multiple users or devices to share one communications line?

None of these
doubleplexer
multipplexer
concentrator
controller

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Computer Networking
Terminals are required for

realtime, timesharing, and distributed processing
realtime, batch processing, and timesharing
None of these
realtime, distributed processing, and manager inquiry
realtime, timesharing, and message switching

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Computer Networking
Carrier is

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

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