OCP2018最新题库，052新题库及答案整理-25题

25、Which is true about logical and physical database structures? (Choose the best answer)

? A. An undo tablespace has a temp file instead of a data file.

? B. A segment can consist of extents of different sizes.

? C. A permanent tablespace can only contain tables segments and index segments.

? D. A tablespace can consist of data blocks of different sizes.

? E. An extent always consists of physically contiguous data blocks in storage.

? Correct Answer: B

原文地址：http://blog.51cto.com/13854012/2151103

时间： 2024-11-05 12:35:50

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