Computer Networking
Contention is

None of these
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 stations attempt to use the same channel at the same time

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Computer Networking
Synchronous protocols

are more reliable
transmit characters one at a time
allow faster transmission than asynchronous protocols do
None of these
are generally used by personal computers

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Computer Networking
A T-switch is used to

transmit characters one at a time
None of these
rearrange the connections between computing equipment
control how messages are passed between computers
echo every character that is received

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