Which option allows you to adjust the version detection intensity with a specific parameter?

• A. -sV
• B. -sV --version-intensity
• C. -sV --allports
• D. -O

Answer: (B)

Version detection is activated with the -sV switch, which tells Nmap to probe services to identify versions. To control how aggressive and thorough that probing is, you use the --version-intensity parameter. This parameter adjusts the depth and number of probes, ranging from less aggressive to more aggressive (0 to 9, with higher values probing more and taking longer). Therefore, combining -sV with --version-intensity lets you turn on version detection and tune its intensity.

The other options don’t adjust the probing depth for version detection: one keeps -sV but would require a separate mechanism to change intensity, another switches on scanning across all ports, and another focuses on OS detection rather than service versioning.