ocp-81

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QUESTION NO: 81
Your database has a backup that was taken yesterday (Tuesday) between 13:00 and 15:00 hours. This is
the only backup you have. You have lost all the archived redo logs generated since the previous Monday,
but you have archived redo logs available from the previous Sunday and earlier. You now need to restore
your backup due to database loss. To which point can you restore your database?
A. 13:00 on Tuesday.
B. 15:00 on Tuesday.
C. Up until the last available archived redo log on Sunday.
D. To any point; all the redo should still be available in the online redo logs.
E. The database is not recoverable.
Answer: E

你的数据库有一个昨日
（星期二） 13:00 至 15:00 小时进行的备份。这是唯一的备份。您已经失去了从过去的周一以来产生的所有
的归档重做日志，但你有过去的周日和更早的归档重做日志可以利用。由于数据库丢失你现在需要恢复您的
备份。哪一点你可以恢复你的数据库？

E. 该数据库是无法恢复的。

The database is not recoverable. You would need all the archived redo logs generated during the backup
on Tuesday, at least, to restore the database after that backup. The online redo logs are very unlikely to
have all the redo that would be required.

该数据库是无法恢复的。您将需要在周二备份过程中产生的所有的
归档重做日志，至少在备份后还原数据库。联机重做日志是不太可能有所有需要的重做。欲了解更多信
息，请参见第3章“ 执行Oracle用户管理的数据库收回。”

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