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- 单项选择题 You issue the following RMAN command to set a retention policy on a database: RMAN>CONFIGURE RETENTION POLICY TO REDUNDANCY 2; What will be the outcome of issuing this command?（）
A、After two days, a backup will be marked obsolete
B、After two days, a backup will be deleted from the media
C、If the RMAN repository has records of two or more recent backups of a file, then older backups will be deleted from the media.
D、If the RMAN repository has records of two or more recent backups of a file, then older backups will be marked obsolete.
- D
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