According to Cisco best practices, which two interface configuration commands help prevent VLAN hopping attacks? (Choose two.)

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According to Cisco best practices, which two interface configuration commands help prevent VLAN hopping attacks? (Choose two.)
A . switchport mode access
B . switchport access vlan 2
C . switchport mode trunk
D . switchport access vlan 1
E . switchport trunk native vlan 1
F . switchport protected

Answer: A,B