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单项选择题 You are responsible for increasing the security within the Company LAN. Of the following choices  listed below，  which is true regarding layer 2 security and mitigation techniques？ （）

A、 Enable root guard to mitigate ARP address spoofing attacks.

B、 Configure DHCP spoofing to mitigate ARP address spoofing attacks.

C、 Configure PVLANs to mitigate MAC address flooding attacks.

D、 Enable root guard to mitigate DHCP spoofing attacks.

E、 Configure dynamic APR inspection （DAI） to mitigate IP address spoofing on DHCP untrusted  ports.

F、 Configure port security to mitigate MAC address flooding  

G、 None of the other alternatives apply

  • F

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