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Objective 2.9220-1202

2.9 Compare and contrast common data destruction and disposal methods.

Objective 2.9 sits in Security, which carries 28% of the A+ Core 2 exam. The questions below are original, written from the official objective title above, and each explanation cites the CompTIA page it rests on.

Objective title verbatim from the official objectives. CompTIA exam page ↗

A worked example

Shown solved, with the whole explanation open: this is what every question here carries.

2-9SecurityEasy

A technician sanitizes a retired drive with the standard write commands the device already exposes, guarding only against simple noninvasive recovery. Which category of sanitization is that?

DestroyDestroy is the grade that also leaves the media unusable for storage afterwards, which a write pass does not.
PurgePurge needs physical or logical techniques that beat state-of-the-art laboratory recovery, not ordinary writes.
ClearCorrect · your answerCorrect. Standard read and write commands define this grade.
ShredShredding names one physical machine rather than a category, and it is an implementation of the strongest grade.

Correct.

Concept

Sanitization is graded by the recovery effort it defeats, not by the tool used. The weakest grade defeats ordinary software recovery, the middle grade defeats laboratory recovery, and the strongest also ends the media's usefulness.

Why C

Logical techniques driven through the device's own read and write interface, such as rewriting every user-addressable location or resetting to factory state, sit at the first grade and stop only simple noninvasive recovery.

Source

#data-destruction#sanitization#nist-800-88

Now you: objective 2.9 questions

No account needed. The explanation opens when you answer.

Sample question 1 of 3

2-9SecurityModerate

Failed solid-state drives in a datacenter cannot complete a clear operation, so they must be purged on site before disposal. Which treatment suits chip-based media?

Sample question 2 of 3

2-9SecurityModerate

An auditor asks how the organization shows that each retired drive stayed accounted for from the moment it left the rack until final disposition. Which control answers that?

Sample question 3 of 3

2-9SecurityHard

Confidential files were deleted from an NTFS volume that stays in production. Which cipher parameter overwrites the free space those files used to hold?

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Read the sources

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