You plan to upgrade a production database running in NOARCHIVELOG mode that has no Fast Recovery Area configured.
The upgrade must be reversable within as quickly as possible with the smallest overhead.
Which three steps must you perform before you start the upgrade? (Choose three.)

Which three requirements should be successfully met by an Oracle Secure Backup (OSB) user so that OSB performs RMAN backup or restore requests? (Choose three.)

View the Exhibit showing steps to create a database resource manager plan.
SQL>execute dbms_resource_manager.create_pendingarea();
PL/SQL procedure successfully completed.
SQL>exec dbms_resource_manager, create_consumergroup
( consumer_group=>'OLTP,,comment=>,onlineuser')
PL/SQL procedure successfully completed.
SQL>exec bras resource_manager.create plan
( plan=>'PRIU3ER3',comment=>'dssprio');
SQL>exec
Dbms_resource_manager.create_plan_directive
( plan=>'PRIU3ER3',group_or_subplan=>'OLTP',comment=>'onlinegrp'CPU_Pl=>60);
PL/3QLproceduresuccessfullycompleted.
After executing the steps in the exhibit you execute this procedure, which
results in an error:
SQL> EXECUTE dbms_resource_manager. validate_pending_area ();
What is the reason for the error?

Your database is running on the host OUSERVER. You back up your database regularly using RMAN and the backups are cataloged in a recovery catalog. For testing purposes, you want to replicate your database to another host, OUSERVER1, with the same directory structure. So, you copy the backups to the new host.
What must you do to make the database operational in OUSERVER1?

Identify three reasons for using a recovery catalog with Recovery Manager (RMAN). (Choose three.)