Which of the following is an effective method for avoiding magnetic media data remanence?
A.
Degaussing
B.
Encryption
C.
Data Loss Prevention (DLP)
D.
Authentication
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Encryption is also a valid answer using a technique known as cryptoerase. Maybe even more so that degaussing which has the potential to leave some data remanence if the degaussing is not coercive enough.
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The “spirit” of the question is asking which of the following, given at their face value, is an effective solution. Looking from the perspective of a manager the only answer that is effective is Degausing.
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encryption would mean encrpting a drive using symmetric cryptography. If the question woud have specifically said cryptoerase then you might have been correct but at face value degaussing is the correct answer.
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