Computer Networking
A T-switch is used to

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

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Computer Networking
What is the problem with an interface if you type show interface serial 0 and receive the following message? "Serial0 is administratively down, line protocol is down."

The keepalives are different times.
No cable is attached.
The administrator has the interface shut down.
The administrator is pinging from the interface.

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Computer Networking
What is a stub network?

A network with more than one exit point.
A network that has only one entry and exit point.
A network with only one entry and no exit point.
A network with more than one exit and entry point.

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