GSLC · Question #215
Victor works as a professional Ethical Hacker for SecureEnet Inc. He wants to scan the wireless network of the company. He uses a tool that is a free open-source utility for network exploration. The…
The correct answer is A. Nmap. Nmap is the free, open-source network exploration tool that uses raw IP packets to enumerate hosts, open ports, services, operating systems, and firewall configurations.
Question
Victor works as a professional Ethical Hacker for SecureEnet Inc. He wants to scan the wireless network of the company. He uses a tool that is a free open-source utility for network exploration. The tool uses raw IP packets to determine the following:
- What ports are open on our network systems
- What hosts are available on the network
- Identify unauthorized wireless access points
- What services (application name and version) those hosts are offering
- What operating systems (and OS versions) they are running
- What type of packet filters/firewalls are in use
Which of the following tools is Victor using?
Options
- ANmap
- BSniffer
- CKismet
- DNessus
How the community answered
(25 responses)- A92% (23)
- C4% (1)
- D4% (1)
Why each option
Nmap is the free, open-source network exploration tool that uses raw IP packets to enumerate hosts, open ports, services, operating systems, and firewall configurations.
Nmap (Network Mapper) is a free, open-source tool that sends crafted raw IP packets to detect available hosts, open ports, application services with version details, operating system fingerprints, and packet filter or firewall rules - matching every capability described in the question scenario.
A sniffer passively captures network traffic in transit and does not actively send raw IP packets to probe hosts for open ports, services, or OS information.
Kismet is a passive wireless network detector and 802.11 packet sniffer focused on identifying wireless networks - it does not perform the active port scanning, OS detection, or service enumeration described.
Nessus is a commercial vulnerability assessment scanner - it is not free open-source software in its full form, and its primary purpose is credentialed vulnerability auditing rather than general-purpose network mapping.
Concept tested: Nmap tool capabilities for network reconnaissance
Source: https://nmap.org/book/intro.html
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