Which three are true about thresholds, metrics, and server-generated alerts?

Oracle 1z0-083 Question Answer

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

All metrics are instance related.

Cleared stateful alerts are displayed by querying DBA_ALERT_HISTORY.

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

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

Metrics are statistical counts for a specific unit.

STATISTICS_LEVEL must be set to ALL to generate alerts.

1z0-083 PDF/Engine

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