CompTIA Security Plus Mock Test Q841

The act of magnetically erasing all of the data on a disk is known as:

A. Wiping
B. Dissolution
C. Scrubbing
D. Degaussing


Correct Answer: D
Section: Application, Data and Host Security

Explanation:
Degaussing is a form a data wiping that entails the use of magnets to alter the magnetic structure of the storage medium.

Incorrect Answers:
A: Data wiping is the process of securely removing data remnants from a storage device so that the data cannot be recovered. This is usually done when a device is to be disposed or
can be done remotely, when a mobile device is stolen.
B, C: Dissolution and scrubbing are not related to erasing data on a disk.

References:
Stewart, James Michael, CompTIA Security+ Review Guide, Sybex, Indianapolis, 2014, pp. 256
http://pcsupport.about.com/od/toolsofthetrade/tp/erase-hard-drive.htm