多项选择题
A. EAP-over-LAN
B. EAP MD5
C. STP
D. protocols not filtered by an ACL
E. CDP
F. TACACS+
单项选择题 Refer to the exhibit. What will happen to traffic within VLAN 14 with a source address of 172.16.10.5？（）
单项选择题 The Company security administrator wants to prevent DHCP spoofing. Which statement is true about DHCP spoofing operation？（）
多项选择题 The Company security administrator is concerned with layer 2 network attacks. Which two statements about these attacks are true？ （）