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【单选题】

Observe the following warning in an RMAN session of your database instance:<br /> WARNING: new failures were found since last LIST FAILURE command<br /> Which statement describes the scenario that must have produced this warning?（）

A、The CHANGE FAILURE command has detected new failures recorded in the Automatic Diagnostic Repository(ADR)

B、The VALIDATE DATABASE command has detected new failures recorded in the Automatic Diagnostic Repository (ADR)

C、The ADVISE FAILURE command has detected new failures recorded in the Automatic Diagnostic Repository (ADR) since the last LIST FAILURE

D、The RECOVER command has detected new failures recorded in the Automatic Diagnostic Repository (ADR) since the last LIST FAILURE command was executed

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