YouaremanaginganOracleDatabase11gdatabaserunninginARCHIVELOGmode.TheFlashRecoveryAreaisspecifiedasthedestinationforthearchivedredologfiles.Younoticethiswarninginthealertlogfile：ORA-19815：WARNING：db_recovery_file_dest_sizeof3221225472bytesis100.00%used，andhas0remainingbytesavailable.WhatwouldyoudotoreclaimtheusedspaceintheFlashRecoveryArea（）A.BackuptheFlashRecoveryArea.B.Decreasetheretentiontimeforthedatabasebackupandflashbacklogfiles.C.ManuallydeleteallthearchivedlogfilesfromtheFlashRecoveryAreabyusingoperatingsystem（OS）commands.D.ManuallydeletealltheexpiredbackupsetsfromtheFlashRecoveryAreabyusingoperatingsystem（OS）commands.

YouaremanaginganOracleDatabase11gdatabaserunninginARCHIVELOGmode.TheFlashRecoveryAreaisspecifiedasthedestinationforthearchivedredologfiles.Younoticethiswarninginthealertlogfile：ORA-19815：WARNING：db_recovery_file_dest_sizeof3221225472bytesis100.00%used，andhas0remainingbytesavailable.WhatwouldyoudotoreclaimtheusedspaceintheFlashRecoveryArea（）

A.BackuptheFlashRecoveryArea.

B.Decreasetheretentiontimeforthedatabasebackupandflashbacklogfiles.

C.ManuallydeleteallthearchivedlogfilesfromtheFlashRecoveryAreabyusingoperatingsystem（OS）commands.

D.ManuallydeletealltheexpiredbackupsetsfromtheFlashRecoveryAreabyusingoperatingsystem（OS）commands.

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