CompTIA Server+ (SK0-005)Security and Disaster RecoveryEasy
A server administrator needs to ensure that sensitive data stored on a retired server's hard drives cannot be recovered by any means, even with advanced forensic techniques. Which of the following methods provides the highest level of data destruction for the physical media?
- ADeleting all partitions on the drives.
- BReformatting the drives using a quick format.
- CPhysically shredding the hard drives.
- DOverwriting the drives with a single pass of zeros.
Show answer & explanationAnswer & explanation
Correct answer: C. Physically shredding the hard drives.
Physically shredding hard drives is the most secure method for data destruction, as it renders the data irrecoverable. Other methods mentioned may leave data fragments that could potentially be reconstructed.
Why the other options are wrong
- A. Deleting partitions only removes the logical structure, not the underlying data, making recovery trivial.
- B. Quick reformatting only removes pointers to data, leaving the data itself intact and recoverable.
- D. A single pass of zeros is better than reformatting, but advanced forensic techniques might still recover some data.
Physical Destruction
The process of rendering data storage media unusable and the data irrecoverable through mechanical or chemical means.
- Ensures data cannot be retrieved.
- Often involves shredding, pulverizing, or incineration.
- Required for highly sensitive data on retired hardware.
Memory trick: Destroy it all, so no one can recall.