CompTIA
SY0-301 · Question #560
SY0-301 Question #560: Real Exam Question with Answer & Explanation
The correct answer is D: Degaussing. Degaussing uses a powerful magnetic field to erase all data from magnetic storage media, making it unrecoverable.
Question
The act of magnetically erasing all of the data on a disk is known as:
Options
- AWiping
- BDissolution
- CScrubbing
- DDegaussing
Explanation
Degaussing uses a powerful magnetic field to erase all data from magnetic storage media, making it unrecoverable.
Common mistakes.
- A. Wiping (or overwriting) replaces existing data with patterns of zeros, ones, or random data using software, but does not use magnetism and is a distinct sanitization method.
- B. Dissolution refers to physically destroying media using chemical solvents to break it down, not a magnetic erasure process.
- C. Scrubbing is a general term for data overwriting or cleaning processes performed in software, not a magnetic erasure technique.
Concept tested. Degaussing as magnetic media sanitization method
Reference. https://csrc.nist.gov/publications/detail/sp/800-88/rev-1/final
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