GIAC
GCIH · Question #393
GCIH Question #393: Real Exam Question with Answer & Explanation
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Question
To defend against network mapping, which of the following packets should be denied at the border router?
Options
- AOutgoing ICMP Port Unreachable messages
- BOutgoing ICMP Echo Request messages
- CIncoming ICMP Time Exceeded messages
- DIncoming ICMP Echo Request messages
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