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."

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

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Computer Networking
The corporate office sends you a new router to connect, but upon connecting the console cable, you see that there is already a configuration on the router. What should be done before a new configuration is entered in the router?

NVRAM should be erased and the router restarted.
The new configuration should be entered and saved.
RAM should be erased and the router restarted.
Flash should be erased and the router restarted.

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