1Z0-053 争议题目解析690

1Z0-053 争议题目解析690

考试科目：1Z0-053
题库版本：V13.02

题库中原题为：

690.The database users regularly complain about the difficulty in performing transactions. On
investigation, you find that some users perform long-running transactions that consume huge amounts of
space in the undo tablespace, which caused the problem. You want to control the usage of the undo
tablespace only for these user sessions and you do not want these sessions to perform long-running
operations.How would you achieve this?
A.Implement a profile for the users.
B.Implement external roles for the users.
C.Set the threshold for the undo tablespace.
D.Implement a Database Resource Manager plan.
Answer:B

争议点：
网上有人说选择D，比如“标记为正确答案，不看answer版”题库。
个人认为也应该是D，看题干的场景，符合考察“数据库资源管理”的知识。

初步结论：
保留争议，选择D。