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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?
Correct Answer: D
Explanation/Reference: 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.