OCP换题库了，最新052考试题库及答案整理-40

40、 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

北京CUUG整理，转载请注明，OCP讨论群：569933648/836361015