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Table Of Contents  CertiGuide to Security+
 9  Chapter 5:  Operational/Organizational Security (Domain 5.0; 15%)
      9  5.2  Disaster Recovery
           9  5.2.1  Backups

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Archive Bit

Now that we’ve heard more about backup, we can talk more about the archive bit. What is the archive bit?

This is an attribute that indicates a file status regarding the backup attribute applied to the file. It can be set to either ON or OFF. Each time a program or file is used or opened, the network operating system (NOS) checks to see if the information in the file has changed, and if so, sets this bit, if it is not already set. When the backup program runs, it checks each file’s archive bit and includes the file or program in the backup if the archive bit is set, thus saving the changes.

The archive bit is turned off when a full or incremental backup is performed.


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