[单选]
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.

Which tasks can be performed with the DSCLI on IBM System Storage DS6000 and DS8000 servers?（） Monitor disk errors and manage storage complexes。 Monitor disk errors and invoke point-in-time copy。 Invoke point-in-time copy and initiate a storage unit shutdown。 Invoke point-in-time copy and manage storage complexe。电子合同签订过程中，希望和他人订立合同的意思表示是（）电子要约。电子承诺。邀约邀请。广告。特许经营中特许人与受许人之间不存在有形资产关系，而是相互独立的法律主体。下列对“八旗制度”的解释，不正确的是（）。是一种军政合一、兵民一体的社会组织。具有行政管理、军事征伐、组织生产的职能。为努尔哈赤建立清朝作出了巨大贡献。有利于满族的形成和社会经济的发展。转移风险往往与只获得最低利益或求得平均利益为前提。

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? （）

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[单选] 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? （）

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[单选]
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? （）