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多选题
Which two statements regarding compressed backups in Recovery Manager （RMAN） are true？（）
A
Backup compression is disabled by default.
B
Backup compression can be used with both backup sets and image copies.
C
Backup compression cannot be enabled using the CONFIGURE command.
D
Backup compression works only if the COMPATIBILITY parameter is set to 9.0.0.0 or higher.
E
Backup compression applies to only backup sets.
F
Backup compression applies to only image copies.
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更多 “多选题Which two statements regarding compressed backups in Recovery Manager （RMAN） are true？（）ABackup compression is disabled by default.BBackup compression can be used with both backup sets and image copies.CBackup compression cannot be enabled using the CONFIGURE command.DBackup compression works only if the COMPATIBILITY parameter is set to 9.0.0.0 or higher.EBackup compression applies to only backup sets.FBackup compression applies to only image copies.” 相关考题
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单选题Compressed backups work with which of the following commands？（）A
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单选题Weekly backups of the system are done on Sundays， and daily backups are done the rest of the week. Which of following backup methods were used if the system crashes on Friday and only requires two backup sets to recover the system？（）A
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多选题Which two statements are true about the duplexing of the backups taken by RMAN? （）(Choose two.)AIt's only supported for the backups performed on the tapeBIt is not supported for backup operations that produce image copiesCDuplex backups need a parallelism for the device to be equal to number of copiesDDuplex backups can be performed to either disk or tape, but cannot be performed on tape and disk simultaneously
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