Computer Networking
The network layer, in reference to the OSI model, provide

the interface between the X.25 network and packet mode device
the virtual circuit interface to packet-switched service
data link procedures that provide for the exchange of data via frames that can be sent and received
All of these
None of these

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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?

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

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