Multiple choice

Two routers Rtr1 and Rtr2 are both configured with RIP only. What will be the result when Rtr1 receives a routing update that contains a higher cost path to a network already in its routing table?

  1. The update information will replace the existing routing table entry.

  2. The update information will be added to the existing routing table.

  3. The existing routing table entry will be deleted from the routing table and all routers will exchange routing updates to reach convergence.

  4. The update will be ignored and no further action will be taken.
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

When a RIP router receives a route to a destination that it already has in its routing table, it compares the metrics. RIP only keeps the route with the lowest cost (fewest hops). If the received update has a higher cost than the existing entry, the update is ignored and the existing better route is retained.

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