A hard disk containing confidential data was damaged beyond repair. What should be done to the hard disk to
prevent access to the data residing on it?
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A.
Rewrite the hard disk with random Os and Is.
B.
Low-level format the hard disk.
C.
Demagnetize the hard disk.
D.
Physically destroy the hard disk.
Explanation:
Physically destroying the hard disk is the most economical and practical way to ensure that the data cannot be
recovered. Rewriting data and low-level formatting are impractical, because the hard disk is damaged.
Demagnetizing is an inefficient procedure, because it requires specialized and expensive equipment to be fully
effective.