Which Nmap command quickly enumerates all machines in the 10.10.0.0/24 network?

Which Nmap command quickly enumerates all machines in the 10.10.0.0/24 network?

• A. nmap -sP 10.10.0.0/24
• B. nmap -T4 -F 10.10.0.0/24
• C. nmap -A 10.10.0.0/24
• D. nmap -v 10.10.0.0/24

Answer: (B)

When you want a fast inventory of which hosts are up on a network and what common services they might be offering, you balance speed with useful detail. The timing template -T4 pushes Nmap to finish scans more quickly by using more aggressive timeouts and retries, while Fast mode -F limits the port scan to the top 100 ports, reducing the amount of work per host. Put together, this combination lets Nmap quickly sweep the whole 10.10.0.0/24, identify live machines, and show which standard ports are open on those machines, giving you a rapid overview of the network. Other options either add more depth and time (like aggressive OS/version/script checks) or don’t change the scan footprint in the same way. A simple host-discovery only approach would be faster in some contexts, but it wouldn’t provide the quick visibility into common services that the fast port scan does. And increasing verbosity alone doesn’t speed up discovery.

When you want a fast inventory of which hosts are up on a network and what common services they might be offering, you balance speed with useful detail. The timing template -T4 pushes Nmap to finish scans more quickly by using more aggressive timeouts and retries, while Fast mode -F limits the port scan to the top 100 ports, reducing the amount of work per host. Put together, this combination lets Nmap quickly sweep the whole 10.10.0.0/24, identify live machines, and show which standard ports are open on those machines, giving you a rapid overview of the network.

Other options either add more depth and time (like aggressive OS/version/script checks) or don’t change the scan footprint in the same way. A simple host-discovery only approach would be faster in some contexts, but it wouldn’t provide the quick visibility into common services that the fast port scan does. And increasing verbosity alone doesn’t speed up discovery.