题目内容

You discover that a disk failure occurred on DISK3 where the data file belonging to the USER_DATA table space is stored. The database is currently open and you need to recover the data file. You will restore the data file to DISK2. What is the correct sequence RMAN commands to restore and recover the data file？（）

A
B
C
D

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A. Cat is-a Animal
B. Cat is-a Jumper
C. Dog is-a Animal
Dog is-a Jumper
E. Cat has-a Animal
F. Beagle has-a Tail
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A
B
C
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B. 目标必须可以衡量
C. 目标必须细化
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