单项选择题
The Database Resource Manager is automatically enabled in the maintenance window that runs the Automated Maintenance Task. What is the reason for this？（）
A. to prevent the creation of an excessive number of scheduler job classes
B. to allow the Automated Maintenance Tasks to use system resources without any restriction
C. to allow resource sharing only among the Automated Maintenance Tasks in the maintenance window
D. to prevent the Automated Maintenance Tasks from consuming excessive amounts of system resources
相关考题
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单项选择题
You executed the following commands： SQL> ALTER SESSION SET OPTIMIZER_USE_PENDING_STATISTICS = false； SQL> EXECUTE DBMS_STATS.SET_TABLE_PREFS（’SH’， ’CUSTOMERS’， ’PUBLISH’，’false’）； SQL> EXECUTE DBMS_STATS.GATHER_TABLE_STATS（’SH’， ’CUSTOMERS’）； Which statement is correct regarding the above statistics collection on the SH.CUSTOMERS table in the above session？（）
A. The statistics are stored in the pending statistics table in the data dictionary.
B. The statistics are treated as the current statistics by the optimizer for all sessions.
C. The statistics are treated as the current statistics by the optimizer for the current sessions only.
D. The statistics are temporary and used by the optimizer for all sessions until this session terminates. -
单项选择题
Multiple RMAN sessions are connected to the database instance. Examine the following output when backup commands are running in server sessions: What could have helped you to correlate server sessions with channels?（）
A. Implement RMAN multiplexing
B. Set the DEBUG ON in the RMAN script
C. Specify the command ID in the RMAN script
D. Use a tag with the RMAN BACKUP command -
多项选择题
Youwanttoenableresumablespaceallocationattheinstancelevel.Whichtwoactionswouldenableresumablespaceallocationattheinstancelevel？（）
A. issuing the ALTER SYSTEM ENABLE RESUMABLE；statement
B. issuing the ALTER SESSION ENABLE RESUMABLE；statement
C. modifying the RESUMABLE_TIMEOUT initialization parameter to a nonzero value
D. issuing the ALTER SYSTEM SET RESUMABLE_TIMEOUT=；statement
