2. 计算机
  3. Select the action that results from executing these commands． Switch(config-if)# switchport port-security Switch(config-if)# swi

Select the action that results from executing these commands． Switch(config-if)# switchport port-security Switch(config-if)# swi

admin2019-04-08  31
问题 Select the action that results from executing these commands．
Switch(config-if)# switchport port-security
Switch(config-if)# switchport port-security mac-address sticky
选项 A、        A dynamically learned MAC address is saved in the startup-configuration file．
B、        A dynamically learned MAC address is saved in the running-configuration file．
C、        A dynamically learned MAC address is saved in the VLAN database．
D、        Statically configured MAC addresses are saved in the startup-configuration file if frames from that address are received．
E、        Statically configured MAC addresses are saved in the running-configuration file if frames from that address are received．
答案B
解析 考点：考查交换机端口安全。sticky 关键字使静态配置和动态学习的mac方式优势相结合
A：把动态学习的mac保存到startup-config文件中，错误。
B：把动态学习的mac保存到running-config文件中，正确。
C：把动态学习的mac保存到vlan数据库中。错误。
D：如果接收到数据帧中包含静态配置的MAC地址，它将被保存在startup-config文件，错误。
E:如果接收到数据帧中包含静态配置的MAC地址，它将被保存在running-config文件，错误静态配置的直接保存在running-config里了。
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