73.You are using Recovery Manager (RMAN) to perform backups. In which three situations would you perform a compressed backup? (Choose three.)
A. You are backing up to tape and your tape device performs its own compression.
B. You are making image copies, and you have not enabled tablespace compression.
C. You are using disk-based backups and disk space in your Flash Recovery Area, or other disk-based backup destinations are limited.
D. You are performing your backups to some device over a network where reduced network bandwidth is more important than CPU usage.
E. You are using some archival backup media, such as CD or DVD, where reducing backup sizes saves media costs and archival storage.
Answer: CDE
参考：http://docs.oracle.com/cd/E11882_01/backup.112/e10642/rcmbckba.htm#BRADV8138
您正在使用恢复管理器（RMAN）来执行备份。在哪三种情况下，你会进行压缩备份？
您使用基于磁盘的备份和使用闪回恢复区磁盘空间，或者其他有限的基于磁盘的备份目的地。
你将备份保存到一个网络中的远程设备之中，降低网络带宽比CPU使用率更重要。
您使用的是一些档案备份介质，如CD或DVD，在那里减少备份大小以节省媒质和归档存储成本。
A. You are backing up to tape and your tape device performs its own compression.
B. You are making image copies, and you have not enabled tablespace compression.
C. You are using disk-based backups and disk space in your Flash Recovery Area, or other disk-based backup destinations are limited.
D. You are performing your backups to some device over a network where reduced network bandwidth is more important than CPU usage.
E. You are using some archival backup media, such as CD or DVD, where reducing backup sizes saves media costs and archival storage.
Answer: CDE
参考：http://docs.oracle.com/cd/E11882_01/backup.112/e10642/rcmbckba.htm#BRADV8138
您正在使用恢复管理器（RMAN）来执行备份。在哪三种情况下，你会进行压缩备份？
您使用基于磁盘的备份和使用闪回恢复区磁盘空间，或者其他有限的基于磁盘的备份目的地。
你将备份保存到一个网络中的远程设备之中，降低网络带宽比CPU使用率更重要。
您使用的是一些档案备份介质，如CD或DVD，在那里减少备份大小以节省媒质和归档存储成本。
来自 “ ITPUB博客 ” ，链接：https://blog.itpub.net/81227/viewspace-2123173/ ，如需转载，请注明出处，否则将追究法律责任。
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