Refer to the graphic.
R1 is unable to establish an OSPF neighbor relationship with R3. What are possible reasons
for this problem? (Choose two.)
A.
All of the routers need to be configured for backbone Area 1.
B.
R1 and R2 are the DR and BDR, so OSPF will not establish neighbor adjacency with R3.
C.
A static route has been configured from R1 to R3 and prevents the neighbor adjacency
from being established.
D.
The hello and dead interval timers are not set to the same values on R1 and R3.
E.
EIGRP is also configured on these routers with a lower administrative distance.
F.
R1 and R3 are configured in different areas.
Explanation:
This question is to examine the conditions for OSPF to create neighborhood.
So as to make the two routers become neighbors, each router must be matched with the
following items:
1. The area ID and its types;
2. Hello and failure time interval timer;
3. OSPF Password (Optional);
So the big circle around all of the routers showing “OSPF AREA 0” is the trick in this question. None of the other answer choices are valid so you are supposed to know that the picture is wrong. What a crappy way of testing “knowledge”.
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