多项选择题
A.Router(config)#router ospf 1
B.Router(config)#router ospf 0
C.Router(config)#router ospf area 0
D.Router(config-router)#network 192.168.16.0 0.0.0.255 area 0
E.Router(config-router)#network 192.168.16.0 0.0.0.255 0
F.Router(config-router)#network 192.168.16.0 255.255.255.0 area 0
多项选择题 Which three elements must be used when you configure a router interface for vlan trunking?（）
多项选择题 Refer to the exhibit. For what two reasons has the router loaded its IOS image from the location that is shown? （）
单项选择题 Refer to the exhibit. Given the output for this command, if the router ID has not been manually set, what router ID will OSPF use for this RouterD?（）