THE NECESSARY CONDITIONS ARE THAT THE SESSION MUST BE ABLE TO EXECUTE THE UTL_FILE PROCEDURES, AND THAT THE UTL_FILE_DIR PARAMETER MUST POINT TO A DIRECTORY ON WHICH THE ORACLE USER HAS THE NECESSARY PERMISSIONS

13. þ A, C, and F. The necessary conditions are that the session must be able to

execute the UTL_FILE procedures, and that the UTL_FILE_DIR parameter must

point to a directory on which the Oracle user has the necessary permissions.

ý B, D, and E. B is wrong because DBMS_OUTPUT is used to write to the

user process, not to the operating system. D is wrong because DB_WRITER_

PROCESSES controls the number of database writers. E is wrong because

DB_CREATE_FILE_DEST sets a default location for datafiles.