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

A.
Wiping

B.
Dissolution

C.
Scrubbing

D.
Degaussing

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