In the context of database usage monitoring, a(n) is a file that automatically records a brief description of the database operations performed by all users.

In the context of database usage monitoring, a(n) audit log is a file that automatically records a brief description of the database operations performed by all users.

Explanation:

Audit log can be defined as document or file that captures the information of every action and event that occurs in the system of Information Technology in a chronological way  (with passage of time).

It sometimes also known as Audit trail.

This document/file contains the following entries:

In short audit log tells us that "what" has been done by "whom"  and "how" (by which process).

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b. xor is the correct answer