Computer Networking
When a group of computers is connected together in a small area without the help of telephone lines, it is called

Wide area network (WAN)
Value added network (VAN)
Local area network(LAN)
None of these
Remote communication network (RCN)

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Computer Networking
What is route poisoning?

It prevents regular update messages from reinstating a route that has just come up.
It sends back the protocol received from a router as a poison pill, which stops the regular updates.
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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