Which tool is used for local network discovery, port scanning, and banner grabbing for protocols such as ssh, telnet, http, https, ftp, smb?

Which tool is used for local network discovery, port scanning, and banner grabbing for protocols such as ssh, telnet, http, https, ftp, smb?

• A. Nmap
• B. Fing
• C. Wireshark
• D. PortDroid Network Analysis

Answer: (D)

The ability to discover devices on a local network, identify open ports, and grab banners across common services is best handled by a versatile network mapper. This tool is designed to actively map what’s available on a network, see which ports are open, and retrieve the service information that banners disclose or version detection reveals. It can perform host discovery to find devices, scan a range of ports to determine what services are exposed (ssh, telnet, http/https, ftp, smb, and more), and pull banner or version details so you know exactly what software is running on those ports. This combination makes it the go-to choice for practical network reconnaissance and assessment. Other tools in this space have narrower focuses. Fing is primarily a mobile device discovery app that lists devices on a LAN but doesn’t offer robust port scanning or banner grabbing. Wireshark is a powerful packet analyzer used to inspect traffic in depth, not a scanning tool for finding hosts or services. PortDroid Network Analysis provides general network analysis on Android but doesn’t match the depth and breadth of a dedicated port-scanning and banner-grabbing tool like Nmap.

The ability to discover devices on a local network, identify open ports, and grab banners across common services is best handled by a versatile network mapper. This tool is designed to actively map what’s available on a network, see which ports are open, and retrieve the service information that banners disclose or version detection reveals. It can perform host discovery to find devices, scan a range of ports to determine what services are exposed (ssh, telnet, http/https, ftp, smb, and more), and pull banner or version details so you know exactly what software is running on those ports. This combination makes it the go-to choice for practical network reconnaissance and assessment.

Other tools in this space have narrower focuses. Fing is primarily a mobile device discovery app that lists devices on a LAN but doesn’t offer robust port scanning or banner grabbing. Wireshark is a powerful packet analyzer used to inspect traffic in depth, not a scanning tool for finding hosts or services. PortDroid Network Analysis provides general network analysis on Android but doesn’t match the depth and breadth of a dedicated port-scanning and banner-grabbing tool like Nmap.