EC-Council
EC0-350 · Question #899
You work for a very security-conscious company. You have recently been informed of a technique known as 'firewalking' and you want to prohibit anyone from being able to use it against your network…
The correct answer is D. Prohibit ICMP TTL exceeded messages from leaving your network. See the full explanation below for the reasoning.
Question
You work for a very security-conscious company. You have recently been informed of a technique known as 'firewalking' and you want to prohibit anyone from being able to use it against your network. Which of the following steps would you take to make firewalking ineffective?
Options
- AProhibit ICMP ECHOREPLY messages from entering your network
- BProhibit ICMP ECHOREPLY messages from leaving your network
- CProhibit ICMP ECHO messages from entering your network
- DProhibit ICMP TTL exceeded messages from leaving your network
How the community answered
(58 responses)- A14% (8)
- B3% (2)
- C5% (3)
- D78% (45)
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