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单选题
Which of the following descriptions about IP spoofing is correct？（）
A
IP source address is forged
B
IP destination address is forged
C
IP TCP source port is forged
D
IP TCP destination port is forged
E
None of above
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单选题Which of the following is the most effective technique to prevent source IPAddress spoofing？（）A
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To prevent a DHCP spoofing， the DHCP server must create a static ARP entry that cannot be updated by a dynamic ARP packet.C
To prevent a DHCP spoofing， the switch must have DHCP server services disabled and a static entry pointing towards the DHCP server.D
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This out-of-band approach supports scalingB
SLB is not inline.C
Mode is not as common as bridge or routed mode.D
Return traffic requires PBR, server default gateway pointing to SLB, or client source NAT.
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