Which of the following are requirements of OSPF router connections? Each correct answer
represents a part of the solution. Choose all that apply.

A.
The routers must not be passive in the command interface.

B.
Interfaces’ primary addresses must be in the same subnet.

C.
K values used in metric calculations must match.

D.
Router IDs must be the same.

E.
Hello timer and the Hold timer must match.