Computer Networking
A network that requires human intervention of route signals is called a

bus network
None of these
ring network
star network
T-switched network

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

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