Question

这道题应该选什么答案？

Which three are true regarding these?
A)A segment with multiple extents can have space in different data files.
B)Segments always consist of more than one extent.
C)Extents always consist of Oracle data blocks.
D)A tablespace can have data files on different file systems.
E)A segment with multiple extents can have space in different tablespaces.
F)Tablespaces always contain multiple segments.
G)Oracle database blocks always consist of multiple OS blocks.
我觉得是ACD，不知道是否正确。

Answer 1

就选ACD,老铁加油

追问

为什么，解析下

Answer 2

多选还是单选，单选的话个人觉得C

Answer 3

答案是CDG，参考链接答案https://www.jianshu.com/p/2cb3bc20ec30

Answer 4

太难了，看了半天不会

Answer 5

他今天校讯通家庭经济打听打听大唐集团几房几厅