OCP-1Z0-053-V12.02-93题

 

93.The database is configured in ARCHIVELOG mode and regular complete database backups are

taken.

The loss of which two types of files may require a recovery with the RESETLOGS option? (Choose two)

A. Control files

B. Password files

C. Inactive online redo log file

D. Archived log files required to perform recovery

E. Newly created tablespace which is not backed up

Answer: AD

答案解析：

A，参考：http://blog.csdn.net/rlhua/article/details/12625067，需要使用RESETLOGS 来打开数据库

B，重新创建新的口令文件

C，Inactive 即是已经备份过的重做日志。丢失可以删除重新创建一个或者清除

D，需要用来恢复的归档日志丢了，即不能做完全恢复，只能不完全恢复，所以只能RESETLOGS 来打开数据库。

E，新的表空间没有备份。参考：http://blog.csdn.net/rlhua/article/details/11869935