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單項選擇題

Which is a benefit of implementing RFC 2827?()

A.Prevents DoS from legimate, non-hostile end systems
B.Prevents disruption of "special services", such as Mobile IP
C.Defeats DoS Attacks which employ IPSource Address Spoofing
D.Restricts directed broadcasts at the ingress router
E.Allows DHCP or BOOTP packets to reach the relay agents asappropriate

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