When youre performing active database duplication,a backup of what kind is required?()
- A、 A current RMAN backup-set backup is required.
- B、 No backup is required.
- C、 An RMAN image backup is required.
- D、 A manual backup is required.
- E、 A "duplicate" preparatory backup is required.
正确答案:B
答案解析:有
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