OCP-1Z0-052-V9.02-115题

115.Which of these is true about undo tablespace?  
A. Undo tablespace is a temporary tablespace  
B. Undo tablespace has only one datafile  
C. Undo tablespace has a datafile which is reused in cyclic manner  
Answer: A  
 
这道题,在我考试的我选择的是A,我的52是100%。

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