Which of the following methods is used to check the integrity of data?
- Backup
- Hashes or checksums
- Encryption
- Authentication
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Explanation & Hint: The method used to check the integrity of data is: Hashes or checksums: Hashes or checksums are used to verify the integrity of data. A hash function generates a fixed-length string of characters (the hash) from the original data. If the data is modified in any way, even a small change, the resulting hash will be different. By comparing the computed hash with the original hash (stored securely), you can detect whether the data has been tampered with or is still intact. This method is commonly used in data integrity checks and file verification processes. |