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

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

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Computer Networking
You get a call from a network administrator who tells you that he typed the following into his router:Router (config) #router ospf 1Router (config-router) #network 10.0.0.0 255.0.0.0 area 0He tells you he still can't see any routes in the routing table. What configuration error did the administrator make?

The AS configuration is wrong.
The OSPF area is wrong.
The OSPF Process ID is incorrect.
The wildcard mask is incorrect.

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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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