How can you mitigate attacks in which the attacker attaches more than one VLAN tag to a packet?

Posted by: Pdfprep Category: 210-260 Tags: , ,

How can you mitigate attacks in which the attacker attaches more than one VLAN tag to a packet?
A . Disable EtherChannel on the switch.
B . Assign an access VLAN to every active port on the switch.
C . Enable transparent VTP on the switch.
D . Explicitly identify each VLAN allowed across the trunk.

Answer: B

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