BCP （Best Common Practices） 38/RFC 2827 Ingress and Egress Packet Filtering would help mitigate whatclassification of attack？（）
- A、Sniffing attack
- B、Denial of service attack
- C、Port Scan attack
- D、Reconnaisance attack
- E、Spoofing attack
正确答案:E
答案解析:有
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