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What term is used to describe a file system that is used to recover quickly after a system crash by maintaining a list of all the changes that need to be made to the disk?1 point

Question

What term is used to describe a file system that is used to recover quickly after a system crash by maintaining a list of all the changes that need to be made to the disk?1 point

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Solution

The term used to describe a file system that is used to recover quickly after a system crash by maintaining a list of all the changes that need to be made to the disk is called a "Journaling File System".

Here are the steps of how it works:

  1. When changes are to be made to the file system, they are first recorded in a "journal".

  2. The journal is a special area set aside for this purpose, and it keeps a log of what actions have been performed on the file system.

  3. If a crash occurs during a write, the system can check the journal to see what changes were being made at the time of the crash.

  4. The system can then use this information to complete the unfinished task, thus ensuring the integrity of the file system and preventing data loss.

  5. Once the system has recovered, it can delete the corresponding entries from the journal.

This process allows the system to recover quickly from crashes by minimizing the amount of data that needs to be checked for errors.

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