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ISACA Certified Information Systems Auditor · Isaca
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When repurposing workstations that contained confidential information, the best way to securely dispose of the data is to erase the disks by degaussing. Degaussing uses a strong magnetic field to destroy the magnetic domains on the disk, making data recovery virtually impossible. Why not the others? A. Overwrite the disks with random data ➤ Effective but time-consuming and may not be fully reliable for some types of media. B. Reformat the disks ➤ Only removes pointers to data; data can still be recovered using specialized tools. D. Delete the disk partitions ➤ Does not remove data; partitions can be recreated and data recovered.
Re-purpose is the key word. we need to re-use the stations, so degaussing is not an option.
Answer: A