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Oracle OCP 1Z0-053 Q693(RMAN Image Copy)

原创 Oracle 作者:abstractcyj 时间:2016-03-22 14:52:07 0 删除 编辑
693. Which two statements are true about an image copy backup? (Choose two.)
A. It may only be taken to disk.
B. It will contain only the used blocks.
C. It will contain all used and unused blocks.
D. It can be performed on disk as well as on tape.
Answer:AC

参考:http://docs.oracle.com/cd/E11882_01/backup.112/e10643/rcmsynta007.htm#CHDEHBEJ

Creates image copies (rather than backup sets).

An image copy is a byte-for-byte identical copy of the original file. You can create image copy backups of data files, data file copies, and archived redo log files. Image copy files can only exist on disk. When using incrementally updated backups, the level 0 incremental must be an image copy backup.

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曾从事java方向开发多年。近年已经转入数据库方向。主要擅长SQL优化,Oracle数据库问题诊断,Oracle备份与恢复等。服务于医药物流,医院等行业

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