单项选择题
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
单项选择题 Refer to the exhibit. An attacker is connected to interface Fa0/11 on switch A-SW2 and attempts to establish a DHCP server for a man-in-middle attack. Which recommendation， if followed， would mitigate this type of attack？（）
多项选择题 Refer to the exhibit. On the basis of the output generated by the show commands， which two statements are true？（）
单项选择题 Refer to the exhibit. Based upon the output of show vlan on switch CAT2， what can we conclude about interfaces Fa0/13 and Fa0/14？ （）