Certified Ethical Hacker – CEH – 312-50 – Question349

Which of the following tools can be used for passive OS fingerprinting?


A.
tcpdump
B. nmap
C. ping
D. tracert

Correct Answer: A

Explanation:

The passive operating system fingerprinting is a feature built into both the pf and tcpdump tools.
References: http://geek00l.blogspot.se/2007/04/tcpdump-privilege-dropping-passive-os.html