Computer Networking
Contention is

a continuous frequency capable of being modulated or impressed with a second signal
None of these
the condition when two or more stations attempt to use the same channel at the same time
One or more conductors that serve 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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Computer Networking
Baseband is

a signal all of whose energy is contained within a finite frequency range
None of these
All of these
transmission of signals without modulation
the simultaneous transmission of data to a number of stations

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