（49）View the Exhibit to examine the output of the DBA_OUTSTANDING_ALERTS view.

After 30 minutes, you executed the following command:

SQL> SELECT reason,metric_value FROM dba_outstanding_alerts;

REASON METRIC_VALUE

------------------------------ ------------

Tablespace [TEST] is [28 perce 28.125 nt] full

What could be the reason for the elimination of the other rows in the output?

A.An Automatic Workload Repository snapshot has been taken recently.

B.The non-threshold-based alerts are transferred to DBA_ALERT_HISTORY.

C.The threshold alerts conditions are cleared and the alerts are transferred to DBA_ALERT_HISTORY.

D.The threshold alerts related to database metrics are permanently stored in DBA_ALERT_HISTORY but not the threshold alerts related to instance metrics.

答案：（C）

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Oracle 11G OCP 1Z0-052 41

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