Computer Networking
What is route poisoning?

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.
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.

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Computer Networking
Demodulation is a process of

converting digital to analog signals
converting analog to digital signals
multiplexing various signals into one high speed line signals
performing data description.

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