What is route poisoning?(a) It sends back the protocol received from a router as a poison pill, which stops the regular updates. The use of variable length subnet masks is permitted(b) It is information received from a router that can’t be sent back to the originating router.RIPv2 supports classless routing(c) It prevents regular update messages from reinstating a route that has just come up(d) It describes when a router sets the metric for a downed link to infinityThis question was posed to me in semester exam.The doubt is from RIP v2 in portion Networking of Computer Network

What is route poisoning?(a) It sends back the protocol received from a

1.	What is route poisoning?(a) It sends back the protocol received from a router as a poison pill, which stops the regular updates. The use of variable length subnet masks is permitted(b) It is information received from a router that can’t be sent back to the originating router.RIPv2 supports classless routing(c) It prevents regular update messages from reinstating a route that has just come up(d) It describes when a router sets the metric for a downed link to infinityThis question was posed to me in semester exam.The doubt is from RIP v2 in portion Networking of Computer Network
Answer» The correct option is (d) It describes when a ROUTER sets the metric for a downed LINK to infinity Easy explanation: When a network goes down, the distance-vector routing protocol initiates ROUTE POISONING by advertising the network with a metric of 16, or unreachable.

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