RMAN中执行以下命令:CONFIGURE RETENTION POLICY TO REDUNDANCY 3; 下列说法正确的是 ()
A.该命令将失败,因为你不能当备份配置冗余为基础的保留策略 已启用优化
B.备份优化执行成功,但RMAN考虑冗余保留策略时,RMAN决定哪个数据文件应备份
C.备份优化被禁用
D.备份优化暂时禁用,因为指定的冗余基于保留策略
A.该命令将失败,因为你不能当备份配置冗余为基础的保留策略 已启用优化
B.备份优化执行成功,但RMAN考虑冗余保留策略时,RMAN决定哪个数据文件应备份
C.备份优化被禁用
D.备份优化暂时禁用,因为指定的冗余基于保留策略
A. The backup will terminate because the FORMAT clause was not configured for the channel
B. It backs up two copies of data files to tape and disk, and two copies of archived log file on tape
C. It backs up the data files and archived log files to disk, making two copies of each data file and archived log file
D. It backs up the data files and archived log files to tape, making two copies of each data file and archived log file
A.备份优化暂时禁用,因为指定的冗余基于保留策略
B.该命令将失败,因为你不能当备份配置冗余为基础的保留策略已启用优化
C.备份优化被禁用
D.备份优化执行成功,但RMAN考虑冗余保留策略时,RMAN决定哪个数据文件应备份
A.该命令将失败,因为你不能当备份配置冗余为基础的保留策略已启用优化
B.备份优化暂时禁用,因为指定的冗余基于保留策略
C.备份优化执行成功,但RMAN考虑冗余保留策略时,RMAN决定哪个数据文件应备份
D.备份优化被禁用
A../configure;make;makeinstall;makeclean
B../configure;makeinstall;makeclean;make
C.make;makeinstall;makeclean;./configure
D.makeinstall;makeclean;make;./configure
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.
A.configureretentionpolicytoredundancydefault
B.configureretentionpolicytoClear
C.configureretentionpolicytonone
D.configureretentionpolicytodefault
A.只能在实例关闭的时候备份
B.将备份所有的块,无论这个块是否被使用了
C.RMAN COPY只能备份到磁盘
D.RMAN COPY只能备份到磁带
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