A system administrator wants to minimize the risk of data corruption if the company server loses power unexpectedly. Which advantage is provided by selecting a file system that supports journaling?
It encrypts files for added security
It increases the maximum size of files that can be stored
It compresses files to save disk space
It maintains a log of file system changes to help recover from crashes
Journaling file systems keep a log of pending changes. If a crash or power failure occurs before writes complete, the system can replay or roll back the log to return the file system to a consistent state, greatly reducing the chance of corruption or data loss. Compression, encryption, and larger file-size limits are unrelated features that do not come automatically from journaling.
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