Route poisoning typically results in which of the following actions in routing tables?

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Multiple Choice

Route poisoning typically results in which of the following actions in routing tables?

Route poisoning is a mechanism in distance-vector routing where a failed or unreachable route is advertised with an infinite metric, so neighboring routers treat that route as unusable and remove it from their tables. In many protocols like RIP, an infinite metric (such as 16) signals that the destination cannot be reached. This helps quickly propagate the failure and prevent routing loops by ensuring the bad route isn’t considered valid anywhere in the network. It’s not about locally removing the route alone, adding a backup path, or broadcasting to the entire network; the core action is updating the route’s metric to infinity to mark it as unreachable.

Route poisoning is a mechanism in distance-vector routing where a failed or unreachable route is advertised with an infinite metric, so neighboring routers treat that route as unusable and remove it from their tables. In many protocols like RIP, an infinite metric (such as 16) signals that the destination cannot be reached. This helps quickly propagate the failure and prevent routing loops by ensuring the bad route isn’t considered valid anywhere in the network. It’s not about locally removing the route alone, adding a backup path, or broadcasting to the entire network; the core action is updating the route’s metric to infinity to mark it as unreachable.

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