單項(xiàng)選擇題

Exhibit， error
You work as a database administrator for Supportcenter.cn. When you try to connect to the database， you get an error （See exhibit）. What could be the possible reason for getting such an error？（）

A.Database is not open
B.Listener is not running
C.Service name is not correct
D.Wrong port number used in URL
E.Usersysdoes have themediaprivilege

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單項(xiàng)選擇題

You work as a database administrator for Supportcenter.cn. Your database is functional. One of the disks containing a mirrored redo log member has bad sectors in it. You are unable to fix the damaged file. How does the loss of a redo log member affect the instance of the database that is currently running？（）

A.The instance would normally abort.
B.The instance would not be affected.
C.The instance would be invalid， so would have to be aborted.
D.The instance would remain open， but the LGWR process would fail.
E.The instance would remain open and would automatically create the missing file

單項(xiàng)選擇題

You work as a database administrator for Supportcenter.cn. In your organization， you have four databases， SupportCenter DB01， SupportCenter DB02， SupportCenter DB03， and SupportCenter DB04， which are located in Berlin， Frankfurt，Rammstein， and Munich respectively， and which were created using Database Configuration Assistant （DBCA）. You want to perform administrative tasks on these databases that include startup and shutdown， taking regular backups， and so on， fromFrankfurtusing Oracle tools. Which Oracle file would you enable to perform this task？（）

A.Control file
B.Password file
C.Parameter file
D.Online redo log file
E.Listener controller file
F.Server parameter file

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Exhibit， error You work as a database administrator for Supportcenter.cn. When you try to connect to the database， you get an error （See exhibit）. What could be the possible reason for getting such an error？（）

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Exhibit， error
You work as a database administrator for Supportcenter.cn. When you try to connect to the database， you get an error （See exhibit）. What could be the possible reason for getting such an error？（）