Computer Networking
The main difference between synchronous and asynchronous transmission is

the pulse height is different.
the clocking is derived from the data in synchronous transmission
None of these
the clocking is mixed with the data in asynchronous transmission
the bandwidth required is different

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Computer Networking
A T-switch is used to

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

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