Two routers are trying to establish an OSPFv3 adjacency over an Ethernet link, but the adjacency
is not forming. Which two options are possible reasons that prevent OSPFv3 to form between
these two routers? (Choose two.)
A.
mismatch of subnet masks
B.
mismatch of network types
C.
mismatch of authentication types
D.
mismatch of instance IDs
E.
mismatch of area types