Which spanning-tree command would cause a PortFast-enabled interface to lose its PortFast-operational status and disable BPDU filtering if it receives BPDUs？（）
- A、spanning-tree guard root
- B、spanning-tree portfast bpduguard default
- C、spanning-tree bpduguard enable
- D、spanning-tree bpdufilter enable
- E、spanning-tree portfast bpdufilter default
正确答案:E
答案解析:有
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