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Difficulty: MediumData Destruction and Disposal Methods

An IT technician is preparing to decommission an enterprise storage system containing magnetic backup tapes, traditional magnetic Hard Disk Drives (HDDs), and Solid-State Drives (SSDs). The organization plans to refurbish and resell the SSDs, while the magnetic tapes and HDDs will be rendered completely unreadable before physical disposal. Which TWO of the following statements represent proper data destruction or sanitization practices for these media types?

  1. Degaussing is effective for rendering data unrecoverable on magnetic tapes and HDDs, but it is ineffective for sanitizing SSDs.Answer
  2. Performing an ATA Secure Erase or cryptographic erase is an appropriate sanitization method for SSDs intended for resale.Answer
  3. C
    Passing the SSDs through a high-powered degaussing wand guarantees complete data destruction prior to resale.
  4. D
    Executing a standard high-level partition format in the operating system permanently purges sensitive data from magnetic HDDs.

Answer

The correct practices are using degaussing for magnetic media (tapes and HDDs) while recognizing its ineffectiveness on SSDs, and executing an ATA Secure Erase or cryptographic erase on SSDs intended for resale.
Degaussing is effective exclusively for magnetic media such as magnetic tapes and traditional hard drives because it disrupts magnetic alignment. Solid-state drives use non-magnetic NAND flash storage, making degaussing ineffective. For SSDs planned for resale, methods such as ATA Secure Erase or cryptographic erase sanitize all NAND cells while maintaining drive usability.

Step-by-Step Solution

1
Identify the media types and disposition goals in the scenario.
The media includes magnetic tapes and HDDs targeted for destruction, and SSDs designated for refurbishment/resale.
Different storage technologies require specific sanitization and disposal techniques based on whether hardware will be reused or destroyed.
2
Select sanitization methods for hardware intended for resale.
SSDs intended for resale require logical sanitization methods like ATA Secure Erase or cryptographic erase that purge all memory cells without damaging hardware functionality.
Physical destruction or degaussing would render the drive unusable or fail to sanitize flash memory.
3
Evaluate destruction methods for magnetic media.
Magnetic tapes and HDDs can be degaussed using strong magnetic fields, whereas degaussing has no impact on non-magnetic SSD semiconductor chips.
Degaussing disrupts magnetic domains on platters and tapes, whereas SSDs store electrical charges in floating-gate transistors.

Key Concept

Selecting appropriate data sanitization and destruction techniques based on storage media architecture (magnetic vs. flash) and hardware disposition goals.
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Data Destruction and Disposal Methods

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