What is causing the problem?
A. There is an area ID mismatch.
B. The R3 router ID is configured on R6.
C. There is a PPP authentication issue; the username is not configured on R3 and R6.
D. There is an OSPF hello and dead interval mismatch.
Answer:B
What is causing the problem?
A. There is an area ID mismatch. B. The R3 router ID is configured on R6. C. There is a PPP authentication issue; the username is not configured on R3 and R6. D. There is an OSPF hello and dead interval mismatch.