一道题不明白,请高手指点

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查看11 | 回复3 | 2010-1-4 08:33:08 | 显示全部楼层 |阅读模式
103. You want to create a tablespace with the following specifications:
1. The tablespace extends automatically.
2. Used and free extents should be managed by bitmaps.
3. Default PCTUSED attribute is set to 60.
4. All the extents would be of size 1 MB.
Which three options would you choose to create the tablespace? (Choose three.)
A. tablespace with AUTOEXTEND enabled
B. tablespace with dictionarymanaged
extents
C. tablespace with a uniform extent allocation of 1 MB
D. tablespace with segment space management as manual
E. tablespace with segment space management as automatic
Answer: ACD

我怎么觉得应该是ACE呢?哪儿看出一定要manual?
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千问 | 2010-1-4 08:33:08 | 显示全部楼层
3. Default PCTUSED attribute is set to 60.
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千问 | 2010-1-4 08:33:08 | 显示全部楼层
如果设为auto那么在此tablespace中相应对象的pctused,freelist,fresslist groups存储参数将被忽略
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千问 | 2010-1-4 08:33:08 | 显示全部楼层
应该是这样的!!
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