Which of the following is the MOST robust method for disposing of magnetic media that contains confidential information?

A.
Degaussing

B.
Defragmenting

C.
Erasing

D.
Destroying

Explanation:
Destroying magnetic media is the only way to assure that confidential information cannot be recovered. Degaussing or demagnetizing is not sufficient to fully erase information from magnetic mediA . The purpose of defragmentation is to eliminate fragmentation in file systems and does not remove information. Erasing or deleting magnetic media does not remove the information; this method simply changes a file’s indexing information.