Question

which is a benefit of a journaled file system?
a. the file system records a transaction after the system carries it out.
b. the file system records a transaction before the system carries it out.
c. the file system maintains a journal of all data on the disk.
d. the file system maintains a journal of all user keyboard entries.

Explanation:

A journaled file system logs transactions before executing them. This allows the system to recover data or fix corruption by referencing the journal if a crash occurs. Option a is incorrect because the log happens before, not after. Options c and d are wrong: the journal tracks transactions, not all disk data or keyboard entries.

Answer:

b. The file system records a transaction before the system carries it out.