单项选择题

What command is used to reset a database to a previous incarnation？（）

A. reset incarnation
B. incarnation reset
C. reset database to incarnation
D. reset database incarnation
E. reset databse incarnation number

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单项选择题

How many database instances are used during a database-duplication process？（）

A. One
B. Two
C. Three
D. Four
E. Five

单项选择题

Which of the following commands will perform an active database duplication of the ORCL database to the ORCL2 database？（）

A.A
B.B
C.C
D.D
E.E

单项选择题

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.