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CERTIFIED-IN-CYBERSECURITY · Question #89

What is the PRIMARY objective of a degaussing?

The correct answer is C. Erasing the data on a disk. Degaussing is a data sanitization technique that exposes magnetic storage media (hard drives, tapes) to a powerful magnetic field, disrupting and erasing the magnetic patterns that encode data. Its primary objective is complete and irrecoverable data erasure-making the data…

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Question

What is the PRIMARY objective of a degaussing?

Options

  • AReducing noisy data on a disk
  • BPreventing magnetic side-channel attacks
  • CErasing the data on a disk
  • DRetaining the data on a disk

How the community answered

(33 responses)
  • A
    6% (2)
  • B
    3% (1)
  • C
    91% (30)

Explanation

Degaussing is a data sanitization technique that exposes magnetic storage media (hard drives, tapes) to a powerful magnetic field, disrupting and erasing the magnetic patterns that encode data. Its primary objective is complete and irrecoverable data erasure-making the data unreadable and unrecoverable before disposal or repurposing of media. It does not reduce disk noise, it is not a countermeasure for side-channel attacks, and it is the opposite of retaining data. Degaussing renders the media unusable after the process.

Topics

#Degaussing#Data sanitization#Data destruction#Storage security

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