Oracle OCP 19c 认证1Z0-083考试题库（第1题）-由CUUG整理

1.Which three are true about thresholds, metrics, and server-generated alerts? (Choose three.)

A. All metrics are instance related.

B. Cleared stateful alerts are displayed by querying DBA_ALERT_HISTORY.

C. A space usage management alert is automatically cleared after the underlying problem is resolved.

D. They are generated by SMON when a tablespace is 97% full.

E. Metrics are statistical counts for a specific unit.

F. STATISTICS_LEVEL must be set to ALL to generate alerts.