單項(xiàng)選擇題

Anyone who knows just the host name and the listener name can have full control over the listener. They can stop the listener and also obtain detailed information about the listener， database， and the configuration of the application. How would you avoid this scenario？（）

A.lock the listener
B.hide the listener
C.create multiple listeners
D.run listener on a remote client
E.set a password for the listener
F.store listener.ora in a non-default location

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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.

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

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Anyone who knows just the host name and the listener name can have full control over the listener. They can stop the listener and also obtain detailed information about the listener， database， and the configuration of the application. How would you avoid this scenario？（）

你可能感興趣的試題

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？（）

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

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Anyone who knows just the host name and the listener name can have full control over the listener. They can stop the listener and also obtain detailed information about the listener， database， and the configuration of the application. How would you avoid this scenario？（）

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？（）