Firewalking

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Q: Which of the below statements is not true about firewalking?


Answer is complete. Select more than one answer if applicable.


a. It can be useful in discovering the types of ports or protocols capable of bypassing a specific firewall.

b. In order to perform firewalking, an attacker must have an address accepted as secure by the firewall as well as one that is not accepted by the firewall.

c. Firewalking works on UDP packets.

d. In this technique, the attacker will transmit a crafted packet with a TTL (time-to-live) value that will expire after one hop past the firewall.

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