多项选择题
A.HFD（config）#iproute10.5.6.00.0.0.255fa0/0
B.HFD（config）#iproute10.5.6.00.0.0.25510.5.4.6
C.HFD（config）#iproute10.5.6.0255.255.255.0fa0/0
D.HFD（config）#iproute10.5.6.0255.255.255.010.5.4.6
E.HFD（config）#iproute10.5.4.60.0.0.25510.5.6.0
F.HFD（config）#iproute10.5.4.6255.255.255.010.5.6.0
多项选择题 Refer to the exhibit. A network associate has configured OSPF with the command: City(config-router)# network 192.168.12.64 0.0.0.63 area 0 After completing the configuration, the associate discovers that not all the interfaces are participating in OSPF. Which three of the interfaces shown in the exhibit will participate in OSPF according to this configuration statement? （）
单项选择题 Which parameter can be tuned to affect the selection of a static route as a backup.when a dynamic protocol is also being used?（）
单项选择题 If IP routing is enabled, which two commands set the gateway of last resort to the default gateway? （）
