93. Your database is having two control files, three redo log file groups with two members in each group. Failure of which file would cause an instance to shut down?
A) any control file
B) any archive log file
C) one of the redo log members
D) loss of the initialization parameter file
E) any data file belonging to the default permanent tablespace
答案：A
是在从关闭的数据库打开数据库，打开数据库要做检查的，检查不到参数中所有的控制文件就关闭实例,如果运行中的数据库丢失一个控制文件也会关闭实例吗?需试验
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