John works as a professional Ethical Hacker. He is assigned a project to test the security of you want to perform the next information-gathering step, i.e., passive OS fingerprinting. Which of the fol

SuperScan is an active port and service scanner that sends packets to discover open ports, making it an active rather than passive tool.

Nmap performs OS fingerprinting actively by sending specially crafted probe packets to the target host, which is the opposite of passive fingerprinting.

P0f works by passively capturing and analyzing packets already present on the network - such as SYN and SYN/ACK packets - without generating any additional traffic of its own. It identifies operating systems by examining subtle differences in TCP/IP stack behavior, such as TTL values, window sizes, and TCP option ordering. This makes it ideal for stealthy reconnaissance because it leaves no trace in target logs.

NBTscan is used to scan for NetBIOS name information on a network and is not designed for OS fingerprinting.