题目内容：
如下图所示，在一台CisCoCatalyst3500交换机上连接2台PC机，使用端口划分方法将它们分别划分在VLANID为21、22，VLAN名为VL21、VL22的VLAN中，下列关于交换机VLAN的配置，正确的是（ ）。
A．SwitCh-3548#vlandataSwitCh-3548(vlan)#vlan21namevl21
SwitCh-3548(vlan)#vlan22namev122
SwitCh-3548(vlan)#exit
SwitCh-3548#Configureterminal
SwitCh-3548(eonfig)#intf0/l
SwitCh-3548(eonfig-if)#switehportaCCessvlan21
SwitCh-3548(eonfig)#intf0/2
SwitCh-3548(eonfig-if)#switehportaCCessvlan22
B．SwitCh-3548#vlandata
SwitCh-3548(vlan)#setvlan21namev121
SwitCh-3548(vlan)#setvlan22namev122
SwitCh-3548(vlan),#exit
SwitCh-3548#Configureterminal
SwitCh-3548(eonfig)#intf0/1
SwitCh-3548(eonfig-if)#switehportaCCessvlan21
SwitCh-3548(Config)#intf0/2'
SwitCh-3548(eonfig-if)#switehportaCCessvlan22
C．SwitCh-3548#vlandata
SwitCh-3548(vlan)#vlan21namev121
SwitCh-3548(vlan)#vlan22namev122
SwitCh-3548(vlan)#exit
SwitCh-3548#Configureterminal
SwitCh-3548(eonfig)#intf0/1
SwitCh-3548(eonfig-if)#switehportallowedvlan21
SwitCh-3548(Config)#intf0/2
Switeh-3548(eonfig-if)#switehportallowedvlan22
D．SwitCh-3548#vlandata
SwitCh-3548(vlan)#vlan21namev121
SwitCh-3548(vlan)#vlan22namev122
SwitCh-3548(vlan)#exit
SwitCh-3548#Configureterminal
SwitCh-3548(Config)#intf0/1
SwitCh-3548(Config-if)#switChportaCCess21
SwitCh-3548(Config)#intf0/2
SwitCh-3548(Config-if)#switChportaCCess22
参考答案：
答案解析：