An organization is concerned that Its hosted web servers are not running the most updated version of the software.
Which of the following would work BEST to help identify potential vulnerabilities?
A . hping3 -s compwia.org -p 80
B . nc -1 -v compria.org -p 60
C . nmap comptia.org -p 80 -sv
D . nslookup -port-80 compcia.org
Answer: B