A company disposing of personal computers that once were
used to store confidential data should first:
A. demagnetize the hard disk.
B. low-level format the hard disk.
C. delete all data contained on the hard disk.
D. defragment the data contained on the hard disk.
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Answer: A
Demagnetizing the hard disk is the best way to ensure that
confidential data once stored on the hard disk cannot be
recovered. Low-level formatting destroys the file allocation
table not the data and the data could be reconstructed with
the appropriate software. Deleting data merely removes its
reference in the file allocation table and the data can be
recovered. Defragmenting is an efficient procedure and does
not remove data.
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