If you want to scan only ports 22 and 3389, which -p syntax would you use?

• A. Use -p 22-3389
• B. Use -p 22,3389
• C. Use -p 22 3389
• D. Use -p 22-3389,3389

Answer: (B)

In Nmap, the -p option accepts ports as a list or as ranges, with a comma used to separate individual ports. To scan only two specific ports, you list them exactly as discrete values separated by a comma. So for ports 22 and 3389, you would use -p 22,3389. A range like 22-3389 would include every port between 22 and 3389, which isn’t what you want. Writing -p 22 3389 without a comma isn’t valid syntax for specifying multiple ports, and mixing a range with a specific port or adding extra pieces (like 22-3389,3389) doesn’t restrict the scan to just those two ports.