Which conditions could cause when OSPF is not able to establish ?
  • You have installed a new router and configured OSPF on it. However, this new router is not able to establish an OSPF neighbor relationship with the neighbor OSPF router. Which four conditions could cause this problem? (Choose four.)

    A. mismatched interface bandwidth between the new router and the neighbor router.
    B. mismatched OSPF area ID between the new router and the neighbor router.
    C. mismatched OSPF router ID between the new router and the neighbor router.
    D. mismatched OSPF hello/dead interval between the new router and the neighbor router.
    E. mismatched OSPF authentication data between the new router and the neighbor router.
    F. mismatched interface MTU between the new router and the neighbor router. 8)