[单选题]要把交换机的配置文件保存到tftp服务器，应使用的命令为（）

正确答案 ：B

copy running-configt ftp

[多选题]交换机的三大功能为（）

正确答案 ：ABC

地址学习

转发过滤

消除回路

解析：ABC

[多选题]How could the Ezonexam corporation benefit from using VLANs on their network?(Select three answer choices.)

正确答案 ：AE

VLANs allow access to network services based on department, not physical location.

VLANs establish segmented broadcast domains in switched networks.

解析：A,E,F 解析：Explanation:

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