多项选择题
A. when one or more file directory paths are accidentally deleted from an ASM disk group
B. when one of the disks in a disk group is accidentaly unplugged
C. when the data file on an ASM disk group gets corrupted
D. when one or more disks in an ASM disk group are lost
多项选择题 WhichtwostatementsaretrueregardingHealthMonitorchecksinOracleDatabase11g？（）
多项选择题 Whichtwoprerequisitesareneededforperformingworkloadcaptureandreplay？（）
单项选择题 You are working on the APPDB database as a DB A. The database has a default Flashback Data Archive DFLA1 created on it. You issued the following command to drop the Flashback Archive FLA1： DROP FLASHBACK ARCHIVE fla1； What is the effect of this command？（）