ECCouncil Ethical Hacking and Countermeasures V8 EC0-350 Question # 110 Topic 12 Discussion

ECCouncil Ethical Hacking and Countermeasures V8 EC0-350 Question # 110 Topic 12 Discussion

EC0-350 Exam Topic 12 Question 110 Discussion:
Question #: 110
Topic #: 12

To scan a host downstream from a security gateway, Firewalking:


A.

Sends a UDP-based packet that it knows will be blocked by the firewall to determine how specifically the firewall responds to such packets


B.

Uses the TTL function to send packets with a TTL value set to expire one hop past the identified security gateway


C.

Sends an ICMP ''administratively prohibited'' packet to determine if the gateway will drop the packet without comment.


D.

Assesses the security rules that relate to the target system before it sends packets to any hops on the route to the gateway


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