Which of the following is the MOST appropriate frequency for updating antivirus signature files for antivirus
software on production servers?

A.
Daily

B.
Weekly

C.
Concurrently with O/S patch updates

D.
During scheduled change control updates

Explanation:

New viruses are being introduced almost daily. The effectiveness of virus detection software depends onfrequent updates to its virus signatures, which are stored on antivirus signature files so updates may be carried out several times during the day. At a minimum, daily updating should occur. Patches may occur less frequently. Weekly updates may potentially allow new viruses to infect the system.