Multiple choice technology

'.BAK' extension refers usually to what kind of file?

  1. Backup file

  2. Audio file

  3. Animation/movie file

  4. MS Encarta document
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A Correct answer
Explanation

The .BAK extension is universally used for backup files across operating systems. When programs auto-save or create backups, they often use this extension. It indicates that the file is a backup copy of another file, typically with the same name but different extension.

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