A Security Engineer Identified a New Server on the Network

Multiple Choice

A security engineer identified a new server on the network and wants to scan the host to determine if it is running an approved version of Linux and a patched version of Apache. Which of the following commands will accomplish this task?

A) nmap -f -sV -p80 192.168.1.20
B) nmap -sS -sL -p80 192.168.1.20
C) nmap -A -T4 -p80 192.168.1.20
D) nmap -O -v -p80 192.168.1.20