A method used by file systems to record changes not yet made to the file system in an object called a journal.

A method used by file systems to record changes not yet made to the file system in an object called a journal.

• A. Snapshots
• B. Recovery
• C. Disposal/Decommissioning
• D. Journaling

Answer: (D)

Journaling is a method used by file systems to record changes not yet made to the file system in a journal. This write-ahead logging ensures that if a crash occurs, the system can replay or roll back the unfinished operations, bringing the metadata and data to a consistent state. Snapshots capture a point-in-time image for backups or restores, not the process of tracking pending changes. Recovery is the overall process of restoring functionality after a failure and may use a journal, but journaling itself is the specific technique. Disposal/Decommissioning is about retiring assets, not tracking file system updates.

Journaling is a method used by file systems to record changes not yet made to the file system in a journal. This write-ahead logging ensures that if a crash occurs, the system can replay or roll back the unfinished operations, bringing the metadata and data to a consistent state. Snapshots capture a point-in-time image for backups or restores, not the process of tracking pending changes. Recovery is the overall process of restoring functionality after a failure and may use a journal, but journaling itself is the specific technique. Disposal/Decommissioning is about retiring assets, not tracking file system updates.