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Examine the following command for RMAN backup:
Which statement Is true regarding the approach in the command?
A. The RMAN multiplexing level is 4.
B. It is the use of asynchronous I/O by RMAN.
C. It is a case of parallelization of the backup set. 这是一种并行的备份集
D. It is an implementation of a multisection backup.
Correct Answer: C
Section: (none)
Explanation
Explanation/Reference:
从以上图片中以及以下的实验中看出，分了三个通道并行备份。
图中1,4,5数据文件使用通道C1，2，3，9数据文件使用通道C2，6,7,8使用通道C3，
这三个通道并行执行备份
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