Refer to the exhibit. R1 is unable to establish an OSPF neighbor relationship with R3. What are two possible reasons for this problem? (Choose two.)
Refer To The Ex 1 (28.09 KiB) Viewed 60 times
A. EIGRP is also configured on these routers with a lower administrative distance.
B. All of the routers need to be configured for backbone Area 1.
C. A static route has been configured from R1 to R3 and prevents the neighbor adjacency from being established.
D. R1 and R2 are the DR and BDR, so OSPF will not establish neighbor adjacency with R3.
E. R1 and R3 are configured in different areas.
F. The hello and dead interval timers are not set to the same values on R1 and R3.
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