Which configuration enables OSPF for network 192.168.1.0/24?
A . router ospf
router-id 192.168.1.0
B . router ospf 1
network 192.168.1.0 255.255.255.0 area 0
C . router ospf 1
neighbor 192.168.1.0
D . router ospf 1
area 0 virtual-link 192.168.1.0
Answer: B