You are responsible for performing a network scan to identify live hosts and open ports within your corporate network. Using Nmap, which of the following commands would be most appropriate to achieve this task efficiently?
nmap -O 192.168.1.0/24
nmap -sS 192.168.1.0/24
nmap -A 192.168.1.0/24
nmap -sP 192.168.1.0/24
The command 'nmap -sP 192.168.1.0/24' initiates a Ping Scan, which is designed to detect live hosts on a specified network range. This command does not fingerprint devices or delve deeply into the network, making it efficient for quickly identifying active systems. The other commands either perform more comprehensive scans or miss identifying open ports correctly. 'nmap -A' includes OS detection, version detection, and script scanning, making it more detailed but slower. 'nmap -sS' performs a TCP SYN scan, focusing on open ports but not exclusively identifying live hosts. 'nmap -O' aims at OS detection, which is more applicable after identifying live hosts.
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