An external host is attacking your network. The host sends an HTTP request to a Web server, but does not
include the version of HTTP in the request.
Which type of attack is being performed?

A.
signature-based attack

B.
application identification

C.
anomaly

D.
fingerprinting

Explanation:
; https://services.netscreen.com/restricted/sigupdates/nsm-updates/HTML/HTTP %3AINVALID%
3AMSNG-HTTP-VER.html