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

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

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Answer: A,B