單項(xiàng)選擇題

You are working on a 24x7 （available 24 hours per day， 7 days per week） production database. An operating system （OS） user deletes the alert log file accidentally. Which statement in this scenario is true？（）

A.The database crashes.
B.The DBA needs to re-create the file.
C.The file gets re-created automatically.
D.The file gets restored automatically from the last backup.
E.The DBA needs to perform a complete database recovery.
F.The DBA needs to perform an incomplete database recovery.

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單項(xiàng)選擇題

Because of a power outage， instance failure has occurred. From what point in the redo log does recovery begin and where does it end？（）

A.current redo log and inactive redo log
B.checkpoint position to end of redo log
C.beginning of redo log to end of redo log
D.all redo logs before the point of last commit
E.beginning of redo log to checkpoint position

單項(xiàng)選擇題

It is a holiday and no transactions are being performed on the database. You took a consistent backup of your database without using Recovery Manager （RMAN）. How would you make use of this consistent backup in RMAN？（）

A.cannot be used in RMAN
B.by starting up the database again
C.by using the CATALOG command of RMAN
D.by using the RECOVER CATALOG command in RMAN
E.by re-creating the target control file to rebuild the RMAN repository

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You are working on a 24x7 （available 24 hours per day， 7 days per week） production database. An operating system （OS） user deletes the alert log file accidentally. Which statement in this scenario is true？（）

你可能感興趣的試題

Because of a power outage， instance failure has occurred. From what point in the redo log does recovery begin and where does it end？（）

It is a holiday and no transactions are being performed on the database. You took a consistent backup of your database without using Recovery Manager （RMAN）. How would you make use of this consistent backup in RMAN？（）

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You are working on a 24x7 （available 24 hours per day， 7 days per week） production database. An operating system （OS） user deletes the alert log file accidentally. Which statement in this scenario is true？（）

Because of a power outage， instance failure has occurred. From what point in the redo log does recovery begin and where does it end？（）