Which of the following should you enable to prevent a switch from forwarding packets with source addresses that are outside an administratively defined group？ （）
- A、 DAI
- B、 STP
- C、 PVLAN
- D、 port security
正确答案:D
答案解析:有
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Which of the following should you enable to prevent a switch from forwarding packets with source addresses that are outside an administratively defined group？ （）
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