The feature of a file system that is responsible for keeping track of changes in the system is journaling.

Quick Scoop

In modern operating systems, many file systems (like NTFS, ext4, APFS) implement a journal that records a log of changes (metadata updates, and sometimes data writes) before they are committed to the main file structures. This journaling mechanism lets the system recover more safely after crashes and ensures file system consistency by replaying or rolling back logged operations as needed.

In many exam or quiz contexts, when asked “Which feature of a file system is responsible for keeping track of changes in the system?” , the expected one- word answer is Journaling (or “a journaling file system”).

So if you are choosing from options like Compression, Encryption, Journaling, or Caching, the correct option is: Journaling.

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