Refer to the exhibit.
In the exhibit, R2 is receiving the 10.100.100.0/24 prefix from R1 and R4. R1 uses the 1.1.1.1
router ID and R4 uses the 4.4.4.4 router ID to advertise the prefix to R2.
Why is R2 preferring the version of the route that R1 is advertising?
A.
The version of the route that R4 is advertising has a higher metric value.
B.
The version of the route that R4 is advertising has an external Type 2 LSA value.
C.
The version of the route that R1 is advertising has a lower associated router ID value.
D.
The version of the route that R1 is advertising has a lower age value.
Explanation:
B is correct
http://packetcorner.wordpress.com/2012/08/20/ospf-route-selection-process/
OSPF route selection process is as follows:
Intra-area routes are preferred over inter-area or external routes, regardless of their cost.
External type 1 (E1) routes are preferred over external type 2 (E2).
very confusing in question its asking why r1 is preferring from R1, where as answer is for r4!!!!!!
if we keep the question as it is then answer could be “C”
answer “B” is correct…..
check the type 1 and type 2….just miss the shot…