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单项选择题What is the purpose of the cisco Vlan Trunking protocol?()

A、to provide a mechanism to dynamically assign vlan membership to switch ports

B、to allow traffic to be carried from multiple vlans over a single link between switches

C、to allow native vlan information to be carried over a trunk link

D、to provide a mechanism to manually assign vlan membership to switch ports

E、to allow for managing the additions,deletions,and changes of vlans between switchs

  • E
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