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问题详情

A network administrator wants to control which user hosts can access the network based on their MAC address. What will prevent workstations with unauthorized MAC addresses from connecting to the network through a switch?（）

A、BPDU

B、Port security

C、RSTP

D、STP

E、VTP

F、Blocking mode

时间：2022-02-23 00:06 关键词： CCNA(640-801)

答案解析

B