Q140: A journaling file system is an example of?

Question 3: A journaling file system is an example of:

Options:

1. Disk File System
2. Transactional File System
3. Network File System
4. Database File System

Solution: The correct answer is 2nd one. Journaling file systems maintain a log and store information there before committing changes. In the event of crash, log is used to restore system state.

Q137: Journaling File System

Question #137: A journaling file system is a file system that keeps track of the changes that will be made in a journal (usually a circular log in a dedicated area of the file system) before committing them to the main file system. Which of the following statement is not true about journaling in file systems?

Options:

1. Journaled file system provides data security in case of power failure.
2. Journaled file system provides data security in case of sudden disconnection of storage devices.
3. Journaled file system provides data security in case of bad blocks.
4. Journaled file system adds on overhead.

Solution: The correct answer is the third one. Bad blocks can happen in the existing file system too, hence journaling won’t help in this case. Rather, a solution like RAID would help.