Certified Ethical Hacker (CEH v11) — Question 268

Which Nmap option would you use if you were not concerned about being detected and wanted to perform a very fast scan?

Answer options

• A. -T5
• B. -O
• C. -T0
• D. -A

Correct answer: A

Explanation

The correct answer is A (-T5), as this option sets the timing template to the fastest scan, prioritizing speed over stealth. Options B (-O) and D (-A) are used for OS detection and aggressive scanning, respectively, which do not focus on speed, while option C (-T0) is designed for a stealthy scan that is much slower.