A.FastEthernet 0/1 B.Console C.Line vty 0 D.Vlan 1
A.Switch(config)#ip address 192.168.1.1 B.Switch(config-if)#ip address 192.168.1.1 C.Switch(config-if)#ip address 192.168.1.1 255.255.255.0 D.Switch(config-if)#ip address 192.168.1.1 netmask 255.255.255.0