200-105 question 118 discussion


Refer to the exhibit.

Assume that all of the router interfaces are operational and configured correctly. How will
router R2 be affected by the configuration of R1 that is shown in the exhibit?

  • A. Router R2 will not form a neighbor relationship with R1.
  • B. Router R2 will obtain a full routing table, including a default route, from R1.
  • C. R2 will obtain OSPF updates from R1, but will not obtain a default route from R1.
  • D. R2 will not have a route for the directly connected serial network, but all other directly connected networks will be present, as well as the two Ethernet networks connected to R1.
Created 5 months, 3 weeks ago by clevie8


the answer is C. The router ospf 1 just identifies the OSPF process on the router which is only significant to the local router. The area is added in the network statement which clearly shows the networks are in area 0. What makes C correct and B incorrect is that from the config, the default route is pointing to S0/0 which is connected to R2


After setting this up in a lab, the answer is actually B. R2 will obtain teh full routing table including the default route


I agree with Clevie8 the answer is B...someone wanted to give us the wrong answer here..


"router ospf 1" shown in the diagram is the process id, not an area. Process id can be different between routers and it will not affect forming adjacency


ip route serial0/0” is causing a loop between R1 and R2 which will cause the link between the two routers to be congested, OSPF will not make an adjacency between them. From its name, OSPF is a Link-State routing protocol, and the link between R1 and R2 is simply down or something like that. In theory it is correct (option A doesn't look too bad, I know the explanation in the answer doesn't make sense.) but #Clevie8 has done it in the lab, so he might be right.


The default route is pointing to R2 which will cause layer 3 Loop.


a A


A may be the correct answer, but the explanation is wrong.