Which of the following is the MOST serious exposure of automatically updating virus signature
files on every desktop each Friday at 11:00 p.m. (23.00 hrs.)?

A.
Most new viruses* signatures are identified over weekends

B.
Technical personnel are not available to support the operation

C.
Systems are vulnerable to new viruses during the intervening week

D.
The update’s success or failure is not known until Monday

Explanation:

Updating virus signature files on a weekly basis carries the risk that the systems will be vulnerable
to viruses released during the week; far more frequent updating is essential. All other issues are
secondary to this very serious exposure.