it should be B nmap –help PORT SPECIFICATION AND SCAN ORDER: -p : Only scan specified ports Ex: -p22; -p1-65535; -p U:53,111,137,T:21-25,80,139,8080,S:9 –exclude-ports : Exclude the specified ports from scanning -F: Fast mode – Scan fewer ports than the default scan -r: Scan ports consecutively – don’t randomize –top-ports : Scan most common ports –port-ratio : Scan ports more common than

just fyi -sP is to skip the port scan.

The nmap command with the "-F" option is used to perform a quick scan of a target system by scanning only the most common ports. Specifically, "-F" option tells nmap to scan only the most commonly used 100 ports, rather than scanning all 65535 ports. This can be useful when time is a critical factor and a quick overview of the open ports on a target system is needed. By scanning fewer ports, the scan can be completed more quickly and with less network traffic, which can be useful in situations where a more comprehensive scan is not necessary or not practical due to time constraints. However, it's worth noting that scanning fewer ports may also lead to missing some important information, especially if the target system is using non-standard ports or services. Therefore, the choice of which ports to scan should be carefully considered based on the specific needs of the scan.

The answer is B

answer should be C

-F: Fast mode - Scan fewer ports than the default scan

Definitely B: The -F flag represents a Fast scan which scans only the top 100 ports.

https://www.google.com/url?sa=i&url=https%3A%2F%2Fwww.stationx.net%2Fnmap-cheat-sheet%2F&psig=AOvVaw33troD2K_tu0vurpTOkRYO&ust=1617982792441000&source=images&cd=vfe&ved=0CAIQjRxqFwoTCMC9ueD97u8CFQAAAAAdAAAAABAD this is correct.