220-802 · Question #837
220-802 Question #837: Real Exam Question with Answer & Explanation
The correct answer is C: Use a degaussing tool. Degaussing exposes magnetic storage media to an extremely strong magnetic field, permanently scrambling all magnetic domains and destroying all data - including the file system structure - making recovery impossible with any software or hardware tool. A standard format only marks
Question
Options
- ARun CHKDSK
- BFormat the hard drive
- CUse a degaussing tool
- DDefragment the hard drive
Explanation
Degaussing exposes magnetic storage media to an extremely strong magnetic field, permanently scrambling all magnetic domains and destroying all data - including the file system structure - making recovery impossible with any software or hardware tool. A standard format only marks sectors as available and leaves the underlying data recoverable with forensic software. CHKDSK checks and repairs file system errors, and defragmenting reorganizes files for performance; neither removes data. Degaussing is the most thorough and secure sanitization method for magnetic drives.
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