Certified Ethical Hacker CEH · Free Practice Question Easy
Question 9
Danny, a black hat hacker, plans to scan the network of an organization using Nmap to identify potential vulnerabilities. He uses the nmap option “-F”. What is the objective of “F’’ option in nmap?
- A A. "-F" option allows the user to save the results of the scan in an XML format.
- B B. "-F" option allows the user to detect the operating system of the target host.
- C C. "-F" option allows the user to set the timings of the probe.
- D D. "-F" option allows the user to reduce the number of ports being scanned and thereby fast completion of the scan.
Reveal correct answer
Correct answer: D
Explanation
Correct Answer: D. "-F" option allows the user to reduce the number of ports being scanned and thereby fast completion of the scan. Explanation: A."-oX" option allows the user to save the results of the scan in an XML format that can be easily parsed by other programs. The XML output format contains detailed information about the scan, including the target host, the open ports and their associated services, and any vulnerabilities or weaknesses that were discovered during the scan. This format can be used to import the scan results into other programs for further analysis or reporting. B."-O" option allows the user to detect the operating system of the target host. C."-T" option allows the user to set the timings of the probe. D."-F" option allows the user to reduce the number of ports being scanned. The "-F" option in Nmap is a shorthand for "fast scan mode." When you use this option, Nmap will scan only the most common ports, which are the 100 most commonly used TCP ports and the top 100 UDP ports. This makes the scan much faster than a full port scan, which can take a long time to complete.Discussion
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