What is the best way to prevent a VLAN hopping attack?
A.
Encapsulate trunk ports with IEEE 802.1Q.
B.
Physically secure data closets.
C.
Disable DTP negotiations.
D.
Enable BDPU guard.
Explanation:
What is the best way to prevent a VLAN hopping attack?
What is the best way to prevent a VLAN hopping attack?
C.
Disable DTP negotiations.
DTP is the devil.
in cisco’s language….even saying DTP is like reading aloud from the Necronomicon in a church at midnight wearing black robes and lighting candles full of pigs blood…..you just don’t do that.