单选题In a switched environment, what does the IEEE 802.1Q standard describe?（）Athe operation of VTPBa method of VLAN trunkingCan approach to wireless LAN communicationDthe process for root bridge selectionEVLAN pruning vlan
单选题
In a switched environment, what does the IEEE 802.1Q standard describe?（）
A
the operation of VTP
B
a method of VLAN trunking
C
an approach to wireless LAN communication
D
the process for root bridge selection
E
VLAN pruning vlan
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