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You can back up the RMAN recovery catalog with RMAN.（）
- A、 True
- B、 False
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单选题What does the DB_FLASHBACK_RETENTION_TARGET parameter configure？（）A
An upper limit on how far you can flash back the database，depending on the information in the redo logsB
An upper limit on how far you can flash back the database，depending on the information in the undo tablespaceC
The amount of time for which the flashback data is to be kept in the flash recovery area， provided that there is enough spaceD
The amount of time for which the flashback data is guaranteed to be kept in the undo tablespace，provided that there is enough space
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单选题You want to put a specific tablespace called MY_DATA in hot backup mode so you can back it up. What command would you use？（）A
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alter MY_DATA begin backupE
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