Routers R1 and R2 are OSPF neighbors using their Fa0/0 interfaces, respectively, using
default settings for all timers. An engineer adds the ip ospf hello-interval 6 command to R1’s
Fa0/0 configuration. Which of the following is true regarding the results from this change?
(Choose 2)

A.
The show ip ospf neighbor command on R1 lists the revised Hello timer.

B.
The show ip ospf interface brief command on R1 lists the revised Hello timer.

C.
The R1-R2 neighborship fails due to Hello timer mismatcH.

D.
The show ip ospf interface command on R1 lists the revised Hello timer.

Explanation:
The show ip ospf interface command displays a router’s OSPF Hello Interval setting for each
enabled interface. The other listed commands do not display the timer. Also, OSPF routers
do need to have matching Hello timers to become neighbors, so the neighborship would fail.