N10-005 Question #556: Real Exam Question with Answer & Explanation

The correct answer is B: Fingerprinting. Fingerprinting (specifically OS fingerprinting) is a reconnaissance technique used to identify the operating system running on a remote host by analyzing characteristics of its network responses, such as TCP/IP stack behavior, TTL values, and banner information. Tools like Nmap u

Question

Which of the following allows a technician to gather information about the operating system?

Options

ADomain services
BFingerprinting
CCountermeasures
DReconnaissance

Explanation

Fingerprinting (specifically OS fingerprinting) is a reconnaissance technique used to identify the operating system running on a remote host by analyzing characteristics of its network responses, such as TCP/IP stack behavior, TTL values, and banner information. Tools like Nmap use active or passive fingerprinting to determine OS type and version. Reconnaissance (D) is the broader category of information gathering, but fingerprinting is the specific technique for OS identification. Domain services and countermeasures do not gather OS information.

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