Nmap is categorized as which type of tool?

Nmap, which stands for Network Mapper, is primarily categorized as a port scanner. This classification is based on its primary function, which is to discover hosts and services on a network by sending packets and analyzing the responses. It helps in identifying open ports on a target system, which signifies what services are running and can provide insights into potential security vulnerabilities present in those services.

Nmap can also perform various other network security tasks, such as OS detection and service version detection, but its core competency is in scanning for open ports. By mapping the network in this manner, it allows administrators and security professionals to better understand the attack surface of their systems and to assess the security posture of their networks.

While it can be used in combination with vulnerability scanning and can identify issues related to web applications, its primary role does not align with the other choices listed, such as vulnerability scanners or web application fuzzers. Thus, the categorization of Nmap as a port scanner effectively captures its main functionality and use case within network security practices.