A.show interfaces B.clock rate C.no shutdoen D.interface serial
A.ip address 192.168.1.1 255.255.255.253 B.ip address 192.168.1.1 255.255.255.250 C.ip address 192.168.1.1 255.255.255.240 D.ip address 192.168.1.1 255.255.255.0
A.interface s0/0 B.interface Ethernet1/0 C.interface Ethernet1/0/0 D.interface 0/0