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Table Of Contents  CertiGuide to A+ (A+ 4 Real)
 9  Chapter 1: What are Operating Systems and How Do They Work?
      9  Backup/Restore

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The Archive Bit

The archive bit was explained earlier, when reviewing the various attributes of files and folders. It reappears here as it has special significance where backing up is concerned. Each time a backup is made, the backup program checks this archive attribute and uses it to determine whether the file should be backed up. If the archive attribute is set (in other words, shown with a check mark next to it when reviewing the properties of a file or folder in Explorer), the file has been changed since the last backup. The file is then backed up again, and the backup program clears (removes) the attribute. If the attribute is not set, the backup program can choose whether to back it up, depending on the backup “strategy”

The term “strategy” is used to define the manner in which a backup will take place.


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