A.172.16.0.0
B.172.32.0.0
C.172.16.32.0
D.172.16.25.0

A.showmac filter
B.showrun
C.showm acaddress-table
D.showmac filter-table

A.showip route
B.showboot version
C.showversion
D.showflash

A.backup IOS dis
B.copyios tftp
C.copytftp flash
D.copyflash tftp

A.never
B.every2 seconds
C.Every10 seconds
D.Every30 seconds

A.erase startup
B.erasenvram
C.delete nvram
D.earse running

A.tcp
B.arp
C.icmp
D.bootp

A.showpvc
B.showinterface
C.showframe-relay pvc
D.shrun

A.添加的VLAN仅在本地有效
B.只能接受VLAN管理更改
C.可以创建并接受更新后的VLAN管理信息
D.只能传递VLAN管理信息而无法接受更改

A.目的MAC地址
B.交换机的MAC地址
C.VLANID
D.BID

A.PoE
B.QoS优先排序
C.端口速度
D.聚合分布层交换机