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YoudecidetoenableFlashbackDatabaseinyourOracle10gdatabasesothatfuturerecoverieswilltakelesstimethantraditionalrecoveries.WhichofthefollowingparametersmustbeincludedinyourinitializationparameterfilebeforeenablingFlashbackDatabase？（）A.DB_RECOVERY_FILE_DESTo
题目
YoudecidetoenableFlashbackDatabaseinyourOracle10gdatabasesothatfuturerecoverieswilltakelesstimethantraditionalrecoveries.WhichofthefollowingparametersmustbeincludedinyourinitializationparameterfilebeforeenablingFlashbackDatabase？（）
A.DB_RECOVERY_FILE_DESTonly
B.DB_FLASHBACK_RETENTION_TARGETonly
C.DB_RECOVERY_FILE_DEST_SIZEandDB_RECOVERY_FILE_DESTonly
D.DB_RECOVERY_FILE_DESTandDB_FLASHBACK_RETENTION_TARGETonly
E.DB_RECOVERY_FILE_DEST_SIZE，DB_RECOVERY_FILE_DESTand
F.DB_FLASHBACK_RETENTION_TARGET