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What are the causes for disk failure, which destroy the entire disk or part of it?

11. What are the causes for disk failure, which destroy the entire disk or part of it?

1. Bad sectors
2. Head crashes
3. Unreachable disks
4. All of the above

Answer: D) All of the above

Explanation:

There are many causes for disk failure, including bad sectors, head crashes, and unreachable disks, which destroy the entire disk or part of it.