CompTIA A+ Core 2 Question B-55

A technician discovers a networked computer has been infected with a zero day virus. Which of the following is the FIRST thing that should be done to the workstation?

A. Document the symptoms of the virus.
B. Turn off the computer using the power switch.
C. Unplug it from the network.
D. Run an antivirus update and then a full scan.

Correct Answer: C

Explanation:
http://en.wikipedia.org/wiki/Zero-day_virus