When Oracle 11g is installed, the maintenance utility "auto space advisor" is installed as being "enabled". DLP makes no use of this utility.
In the interest of saving resources, auto space advisor can be disabled by running the following script from SQLPlus logged in as SYS as SYSDBA:
DBMS_AUTO_TASK_ADMIN.disable(client_name => 'auto space advisor',
operation => NULL,
window_name => NULL);