单选题Which is a benefit of implementing RFC 2827？（）APrevents DoS from legimate， non-hostile end systemsBPrevents disruption of special services， such as Mobile IPCDefeats DoS Attacks which employ IPSource Address SpoofingDRestricts directed broadcasts at the ingress routerEAllows DHCP or BOOTP packets to reach the relay agents asappropriate
单选题
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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