CompTIA Network+ (N10-008) — Question 291

An IT administrator received an assignment with the following objectives:
✑ Conduct a total scan within the company's network for all connected hosts.
✑ Detect all the types of operating systems running on all devices.
✑ Discover all services offered by hosts on the network.
✑ Find open ports and detect security risks.
Which of the following command-line tools can be used to achieve these objectives?

Answer options

Correct answer: A

Explanation

The correct tool is nmap, as it is specifically designed for network exploration and security auditing, enabling comprehensive scans for hosts, services, OS detection, and open ports. The other options, such as arp and netstat, are more limited in functionality, with arp focusing on address resolution and netstat providing information on network connections rather than performing detailed scans. Tcpdump is primarily a packet analyzer, which does not fulfill all the specified tasks.