ocp-511

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QUESTION NO: 511
Consider the following scenario for your database:

-Backup optimization is enabled in RMAN.
-The recovery window is set to 7 days in RMAN.
-The most recent backup to disk for the TOOLS tablespace was taken on November 3, 2007.
-The TOOLS tablespace is read-only since November 4, 2007. 。
On November 23, 2007, you issue the RMAN command to back up the database to disk.

Which statement is true regarding the backup of the TOOLS tablespace?

A. The RMAN backup fails because the TOOLS tablespace is read-only
B. The RMAN skips the backup of the tablespace because backup optimization is enabled
C. The RMAN makes backup because optimization can be enabled only for backups to disk
D. The RMAN makes the backup because no backup of the tablespace exists within the seven day window

Answer: D

为您的数据库考虑以下情形：
在RMAN中启用备份优化。
在RMAN中恢复窗口设置为7天。指能保留七天。
最近的工具表空间到磁盘的备份是在2007年11月3日。
自2007年11月4日以来，工具表空间是只读的
2007年11月23日，你发出RMAN命令将数据库备份到磁盘。
哪种说法是正确的关于工具表空间的备份？

D.RMAN采取备份，因为没有表空间的备份存在于7天窗口内。

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