343.What is the impact of the following backup if it exceeds the duration allowance? (Choose all that

apply.)Backup as compressed backupset duration 2:00 partial minimize load database ;

A. The entire backup will fail. It will not be usable for recovery.

B. The entire backup will fail, but any datafile successfully backed up will be usable for recovery.

C. If this backup fails, subsequent backups will prioritize datafiles not backed up.

D. If this backup fails, an error will be raised and any other commands will not be executed.

E. If this backup fails, no error will be raised and any other commands will be executed.

Answer: B
解析：

PARTIAL 参数表明： with partial 参数如果你在你设置的备份执行时间区段内，尽管你完成备份任务，但是rman 也不会报错，

without partial 参数在你设定的时间段内如果没有完成备份任务，那么rman 会报错，并且如果备份命令是在RUN块儿的一部分，那么自时间结束之后的部分命令不再继续执行，

注意：不管你是不是用了该参数，在停止之前已经完成的备份是被保存的并且是可以用于还原和恢复操作的。

minimize 参数后可以跟 load 或time ,minimize load 就是说减少负载，也就是降低备份速度， minimize time 就是减少时间，自然是加快备份速度

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ocp 053 343