If you find errors in the view V$DATABASE_BLOCK_CORRUPTION with a status of MEDIA_CORRUPT， what RMAN command would you run to correct the problem？（）

If you create your database using Oracle Managed Files （OMF）， what is true？（）

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If a backup set is expired， what can you do to correct the problem？（）  

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If you are going to run a TSPITR recovery， which view will help you to determine which objects will be lost during the TSPITR？（）

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What advantage would you get if you increase the length of time during which the undo information would be stored in the database？（）

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As soon as you discover that you have lost an online redo log， if the database is still functioning， what should be your first action？（）  

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How can you reverse the effects of an ALTER DISKGROUP ... DROP DISK command if it has already completed？（）  

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You want to check the EMP table in the user， Scott’s schema for block corruption. You also want to fix the corrupted blocks， if any. How will you accomplish the required task？（）

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How can you reverse the effects of an ALTER DISKGROUP ... DROP DISK command if it has not yet completed？（）  

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If a log file becomes corrupted， it may cause the database to stall. How would you correct such a situation？（）  

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