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Which of the following refers to the data left on the m…

Which of the following refers to the data left on the media after the media has been erased?

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A.
remanence

B.
recovery

C.
sticky bits

D.
semi-hidden

Explanation:
Data Remanence is the problem of residual information remaining on the media after erasure, which may be
subject to restoration by another user, thereby resulting in a loss of confidentiality. Diskettes, hard drives, tapes,
and any magnetic or writable media are susceptible to data remanence. Retrieving the bits and pieces of data
that have not been thoroughly removed from storage media is a common method of computer forensics, and is
often used by law enforcement personnel to preserve evidence and to construct a trail of misuse. Anytime a
storage medium is reused (and also when it is discarded), there is the potential for the media’s information to
be retrieved. Methods must be employed to properly destroy the existing data to ensure that no residual data is
available to new users. The “Orange Book” standard recommends that magnetic media be formatted seven
times before discard or reuse.
Incorrect Answers:
B: Recovery is not the term that refers to the data left on the media after the media has been erased.
C: Sticky bits is not the term that refers to the data left on the media after the media has been erased.
D: Semi-hidden is not the term that refers to the data left on the media after the media has been erased.

Krutz, Ronald L. and Russell Dean Vines, The CISSP Prep Guide: Mastering the CISSP and ISSEP Exams,
2nd Edition, Wiley Publishing, Indianapolis, 2004, p. 477


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