Which configuration set accomplishes this goal?

Refer to the exhibit.

A network engineer is configuring OSPF between router R1 and router R2. The engineer must ensure that a DR/BDR election does not occur on the Gigabit Ethernet interfaces in area 0.

Which configuration set accomplishes this goal?
A . R1(config-if)interface Gi0/0
R1(config-if)ip ospf network point-to-point
R2(config-if)interface Gi0/0
R2(config-if)ip ospf network point-to-point
B . R1(config-if)interface Gi0/0
R1(config-if)ip ospf network broadcast
R2(config-if)interface Gi0/0
R2(config-if)ip ospf network broadcast
C . R1(config-if)interface Gi0/0
R1(config-if)ip ospf database-filter all out
R2(config-if)interface Gi0/0
R2(config-if)ip ospf database-filter all out
D . R1(config-if)interface Gi0/0
R1(config-if)ip ospf priority 1
R2(config-if)interface Gi0/0
R2(config-if)ip ospf priority 1

View Answer

Answer: C

Explanation:

To prevent a DR/BDR election on a network, the OSPF interface priority needs to be set to 0. This can be done by using the ip ospf priority 0 command on the router’s interface configuration. With this setting, the router is ineligible to become a DR or BDR, ensuring that no election takes place on that interface.