Schema export via Oracle data pump with Database Vault enabled question

Hi,

I have installed and configured Database Vault on an Oracle 11g-r2-11.2.0.3 to protect a specific schema (SCHEMA_NAME) via a realm. I have followed the following doc:

http://www.oracle.com/technetwork/database/security/twp-databasevault-dba-bestpractices-199882.pdf

to ensure that the sys and the system user has sufficient rights to complete a schedule Oracle data pump export operation.

I.e. I have granted to sys and system the following:

execute dvsys.dbms_macadm.authorize_scheduler_user('sys','SCHEMA_NAME');

execute dvsys.dbms_macadm.authorize_scheduler_user('system','SCHEMA_NAME');

execute dvsys.dbms_macadm.authorize_datapump_user('sys','SCHEMA_NAME');