GIAC Certified Incident Handler (GCIH) — Question 112

As a professional hacker, you want to crack the security of secureserver.com. For this, in the information gathering step, you performed scanning with the help of nmap utility to retrieve as many different protocols as possible being used by the secureserver.com so that you could get the accurate knowledge about what services were being used by the secure server.com. Which of the following nmap switches have you used to accomplish the task?

Answer options

• A. nmap -vO
• B. nmap -sS
• C. nmap -sT
• D. nmap -sO

Correct answer: D

Explanation

The correct answer is D, as the nmap -sO switch is specifically designed to identify the protocols in use on the target. The other options, such as -vO, -sS, and -sT, are used for different types of scans that do not focus on protocol identification.