CompTIA Security Plus Mock Test Q181

A Windows-based computer is infected with malware and is running too slowly to boot and run a malware scanner. Which of the following is the BEST way to run the malware scanner?


A.
Kill all system processes
B. Enable the firewall
C. Boot from CD/USB
D. Disable the network connection

Correct Answer: C
Section: Network Security

Explanation:
Antivirus companies frequently create boot discs you can use to scan and repair your computer. These tools can be burned to a CD or DVD or installed onto a USB drive. You can then restart your computer and boot from the removable media. A special antivirus environment will load where your computer can be scanned and repaired.

Incorrect Options:
A: Kill all system processes will stop system processes, and could have a negative effect on the system. It is not the BEST way to run the malware scanner
B: The basic purpose of a firewall is to isolate one network from another. It is not the BEST way to run the malware scanner.
D: Disabling the network connection will not allow for the BEST way to run the malware scanner.

Reference:

How to Scan and Repair an Infected Computer From Outside Windows


Dulaney, Emmett and Chuck Eastton, CompTIA Security+ Study Guide, 6th Edition, Sybex, Indianapolis, 2014, p. 342