The two empty MSR routers are connected by the way shown in the figure. By configuring the IP address, the GE0 / 0 interfaces of the two routers can communicate with each other.

Now the following configurations are added to the two routers:

RTA:

[RTA]ospf

[RTA-ospf-1]area 0

[RTA-ospf-1-area-0.0.0.0]network 192.168.1.1 0.0.0.3

[RTA-GigabitEthernet0/0]ospf dr-priority 2

DAF:

[RTB]ospf [RTB-ospf-1]area 0

[RTB-ospf-1-area-0.0.0.0]network 192.168.1.1 0.0.0.3

[RTB-GigabitEthernet0/0]ospf dr-priority

Then after the OSPF neighbor state is stable, ______ .
A . OSPF interfaces have the same priority, and no OSPF DR election is performed on the 192.168.1.0/30 network segment
B . Of the two routers, one is DR and one is BDR
C . Of the two routers, one is DR and the other is DRother
D . The neighbor status of the two routers is FULL and 2-Way

Answer: B

Explanation:

[ Interface ] ospf dr-priority ( 0-255 ) modify the interface priority, the default is 1 , the non-participation election with priority 0 is only broadcast network, NBMA network only has DB , BDR election, Gigabit Ethernet default interface Broadcast modify ospf network type: [ interface ] ospf network-type () DR , BDR election is for the interface, network segment, not RT is DR , BDR . By comparing the interface priority (the bigger the better), the router id is the same (the bigger the better) the other DR2 status stays at 2-way