OCP CBT Question 543

Please solve the following question.

Which of the following best describes the primary purpose of the Redo Log Buffer in an Oracle database?

To store copies of data blocks that have been modified but not yet written to disk.

To cache SQL statements and PL/SQL code for faster execution.

To temporarily store changes made to the database, ensuring that transactions can be recovered in case of a failure.

To hold sort segments and hash tables for complex queries.