OCP 052考試換題庫后的新題整理-第31題
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我要咨詢OCP考試換題庫了，oracle這種突然的變化讓很多考生不敢報考，而且052 053還在不斷加入新題，大大加大了考試的難度，這里整理了一些052的新題，希望對大家有幫助。
31、Which three are true about undo segments and undo tablespaces in the same database and instance?
A. Multiple transactions run by the same Oracle user can share a single undo segment.
B. Multiple transactions run by different Oracle users can share a single undo segment.
C. A serial transaction can use multiple undo segments.
D. Undo segments are automatically dropped shortly after transactions that use them commit.
E. A new undo segment is always created for each transaction.
F. A database can have multiple undo tablespaces.
Correct Answer: ABF
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