CISSP · Question #1519
Drag and Drop Question Place in order, from BEST (1) to WORST (4), the following methods to reduce the risk of data remanence on magnetic media. Answer:
The correct answer is Overwriting; Degaussing; Destruction; Deleting. Wait - the correct arrangement here appears counterintuitive and requires clarification. The standard security ranking for reducing data remanence on magnetic media from BEST to WORST is: (1) Destruction - physically eliminates the media entirely, making recovery impossible; (2)
Question
Exhibit
Answer Area
Drag items
Correct arrangement
- Overwriting
- Degaussing
- Destruction
- Deleting
Explanation
Wait - the correct arrangement here appears counterintuitive and requires clarification. The standard security ranking for reducing data remanence on magnetic media from BEST to WORST is: (1) Destruction - physically eliminates the media entirely, making recovery impossible; (2) Degaussing - uses a strong magnetic field to randomize magnetic domains, rendering data unrecoverable; (3) Overwriting - writes new data patterns over existing data multiple times, which is effective but relies on software and may miss bad sectors; (4) Deleting - simply removes file system pointers/directory entries while leaving the underlying data intact, making it the least effective method. Note: The 'correct_arrangement' provided in this question lists Overwriting as #1 and Destruction as #3, which conflicts with most security frameworks (NIST SP 800-88) where Destruction is considered the gold standard. If the exam intends this specific order, it may be ranking methods by practicality/reusability rather than security assurance level alone.
Topics
Community Discussion
No community discussion yet for this question.