For what purpose would a network administrator use the Nmap tool?

For what purpose would a network administrator use the Nmap tool?

• A. Detection and identification of open ports
• B. Encrypt traffic
• C. Monitor video streams
• D. Configure DHCP

Answer: (A)

Nmap is a network scanning utility used to discover which hosts are reachable on a network and which ports on those hosts are accepting connections. Its primary purpose is to detect and identify open ports, along with the services that are listening on them. By sending probe packets and analyzing the responses, Nmap can tell you which ports are open, closed, or filtered, and it can often guess the service name and even version running on a port. This information helps a network administrator map the network’s surface, assess security posture, and verify that firewalls and access controls are correctly configured. Other options don’t fit this tool’s purpose: encrypting traffic is accomplished with encryption protocols and software, not with Nmap; monitoring video streams is the realm of media or network monitoring tools; and configuring DHCP is a separate task handled by DHCP servers or network management services.

Nmap is a network scanning utility used to discover which hosts are reachable on a network and which ports on those hosts are accepting connections. Its primary purpose is to detect and identify open ports, along with the services that are listening on them. By sending probe packets and analyzing the responses, Nmap can tell you which ports are open, closed, or filtered, and it can often guess the service name and even version running on a port. This information helps a network administrator map the network’s surface, assess security posture, and verify that firewalls and access controls are correctly configured.

Other options don’t fit this tool’s purpose: encrypting traffic is accomplished with encryption protocols and software, not with Nmap; monitoring video streams is the realm of media or network monitoring tools; and configuring DHCP is a separate task handled by DHCP servers or network management services.