大数据就业实战培训 Oracle就业实战培训
OCP 052考试在今年4月份的时候突然调整了，考题几乎全变了，而且到现在还在不断的加入新考题，题库不稳定导致报考ocp的成功率也下降很多，这里整理了一些052的新题，希望对大家有帮助。
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.
Answer: B
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