312-50V13 Question #385: Real Exam Question with Answer & Explanation

The correct answer is A: -T5. To perform a very fast Nmap scan without concern for detection, the -T5 option (Insane timing template) is used.

Submitted by helene.fr· Mar 6, 2026Scanning Networks

Question

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

To perform a very fast Nmap scan without concern for detection, the -T5 option (Insane timing template) is used.

Common mistakes.

B. The -O option enables OS detection, which can slow down a scan and is not primarily focused on speed.
C. The -T0 option sets the "Paranoid" timing template, which is extremely slow and designed for stealth, directly contradicting the requirement for a fast scan without concern for detection.
D. The -A option enables aggressive scan options, including OS detection, version detection, script scanning, and traceroute, which can be comprehensive but also very slow, not primarily designed for maximum speed.

Concept tested. Nmap timing templates

Reference. https://nmap.org/book/man-performance.html

#Nmap#network scanning#scan timing#stealth

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