A ) Switch-3548#vlan data
Switch-3548(vlan )#vlan 21 name vl21
Switch-3548(vlan )#vlan 22 name vl22
Switch-3548(vlan )#exit
Switch-3548#configure terminal
Switch-3548(config )#interface f0/1
Switch-3548(config -if)#switchport allowed vlan
21
Switch-3548(config -if)#exit
Switch-3548(config )#inerface f0/2
Switch-3548(config-if )#switchport allowed vlan
22
B)Switch-3548#vlan data
Switch-3548(vlan )# set vlan 21 name vl21
Switch-3548(vlan )#set vlan 22 name vl22
Switch-3548(vlan )#exit
Switch-3548#configure terminal
Switch-3548(config )#interface f0/1
Switch-3548(config -if)#switchport access vlan
21
Switch-3548(config-if)#exit
Switch-3548(config )#inerface f0/2