问题:
A . Port security needs to be globally enabled.
B . Port security needs to be enabled on the interface.
C . Port security needs to be configured to shut down the interface in the event of a violation.
D . Port security needs to be configured to allow only one learned MAC address.
E . Port security interface counters need to be cleared before using the show command.
F . The port security configuration needs to be saved to NVRAM before it can become active.
● 参考解析
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