In computer science, Data backup refers to which of the following?
- A. The fastest and smallest storage tier in a computer, located directly inside the CPU.
- B. A type of non-volatile memory that can be electrically erased and reprogrammed in small blocks.
- C. A copy of data stored separately from the original, used to restore information in case of loss or damage. ✓
- D. A storage device that uses integrated circuits to store data persistently, with no moving mechanical parts.
Correct answer
C. A copy of data stored separately from the original, used to restore information in case of loss or damage.
Explanation
Data backup refers to a copy of data stored separately from the original, used to restore information in case of loss or damage.