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You use a recovery catalog for maintaining your database backups.You execute the following command:$rman TARGET / CATALOG rman / cat@catdbRMAN > BACKUP VALIDATE DATABASE ARCHIVELOG ALL;Which two statements are true?（）
A:Corrupted blocks, if any, are repaired.
B:Checks are performed for physical corruptions.
C:Checks are performed for logical corruptions.
D:Checks are performed to confirm whether all database files exist in correct locations
E:Backup sets containing both data files and archive logs are created.

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出自：Oracle认证

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