You received the following error：   ORA-01578： ORACLE data block corrupted   （file # %s， block # %s）   Which file will you check to view additional information regarding the cause of this error？（）

You work as a database administrator for Certkiller .com. You received the following error while working on your database： ORA-01555： snapshot too old  In which situation would you receive such an error？（）

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Your database is running in NOARCHIVELOG mode. Every night there is a backup taken using RMAN. During your startup this morning you received en error regarding DISK 3 on your server. This is the location of your data file for the SYSTEM tablespace. Which option is open to you？（）

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You receive the following error：   ORA-19804： cannot reclaim nnnnn bytes disk space from mmmmm limit   Identify the reason for receiving the above error message？（）

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You work as a database administrator for Supportcenter.cn. When you tried to connect to the database， you received the following error：   ERROR：   ORA-12541：TNS：no_listener   You found that the listener is not running on the server， so you issued the following command in the Listener Control utility to start the listener.   lsnrctl>START   What statement is true？（）

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You work as a database administrator for Certkiller .com. You need to rename a data file of atablespace.  How would you perform this？（）

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When you try to open your database， you receive the following error：  ORA-00205： error in identifying controlfile  Where would you find the details required to resolve this error？（）

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When you try to open your database， you receive the following error：  ORA-00205： error in identifying control file   Where would you find the details required to resolve this error？（）

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You created a database by using the Database Configuration Assistant. What must you do to access a user account in the sample schemas？（）

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View the Exhibits. You performed operations on the DEPT4 table as shown in the Exhibit. When you perform the FlashbackVersions Query， you find that the first two updates are not listed. What could be the reason？（） 

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You work as a database administrator for Certkiller .com. You want to configure database backups to be run automatically.  Which tool or utility would you use to achieve this？ （）

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