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单选题
Which of the following IOS features can prevent IP spoofing attacks？（）
A
PPP over Ethernet
B
Cisco Express forwarding
C
MPLS traffic Engineering
D
IS-IS routing
E
Unicast Reverse Path Forwarding（uRPF）
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考题
单选题Which of the following descriptions about IP spoofing is correct？（）A
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考题
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