Which of the following tools performs comprehensive tests against web servers, including dangerous files and
CGIs?

A.
Nikto

B.
Snort

C.
John the Ripper

D.
Dsniff

Explanation:
Nikto is an Open Source (GPL) web server scanner which performs comprehensive tests against web servers
for multiple items, including over 6700 potentially dangerous files/CGIs, checks for outdated versions of over
1250 servers, and version specific problems on over 270 servers. It also checks for server configuration items
such as the presence of multiple index files, HTTP server options, and will attempt to identify installed web
servers and software. Scan items and plugins are frequently updated and can be automatically updated.
https://en.wikipedia.org/wiki/Nikto_Web_Scanner