A router has learned three possible routes that could be used to reach a destination network. One route is from EIGRP and has a composite metric of 20684570. Another route is from OSPF with a metric of 852. The last is from RIPv2 and has a metric of 4. Which route or routes will the router install in the routing table? A. the OSPF route B. the EIGRP route C. the RIPv2 route D. all three routes E. the OSPF and RIPv2 routes

Correct Answer: : B Explanation : This is one of those tricky questions just to test your knowledge of routing protocols and their administrative distance Let’s look at the AD of popular routing protocols below: Routing Protocol (Source) AdministrativeDistance(AD) Directly connected 0 Static Route 1 EIGRP 90 Summary Route(EIGRP) 5 OSPF 110 RIP 120 Fom the above table, you can see that EIGRP has the lowest AD from all of the above mentioned routing protocols So, the router will choose to use the routing protocol which has lowest Administrative Distance which in this case is B EIGRP