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 infinity

Correct Answer: It describes when a router sets the metric for a downed link to infinity

When a network goes down, the distance-vector routing protocol initiates route poisoning by advertising the network with a metric of 16, or unreachable.
Bissoy MCQ
#Computer Networks #RIP v2

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