Computer Networking
You telnet into a remote device and type debug ip rip, but no output from the debug command is seen. What could the problem be?

IP addressing on the network is incorrect.
Debug output is sent only to the console.
You must type the show ip rip command first.
You must use the terminal monitor command.

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

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

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Computer Networking
What is route poisoning?

It sends back the protocol received from a router as a poison pill, which stops the regular updates.
It prevents regular update messages from reinstating a route that has just come up.
It describes when a router sets the metric for a downed link to infinity.
It is information received from a router that can't be sent back to the originating router.

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