單項選擇題

A user complains that he gets the following error message repeatedly after executing some SQL statements. The error message forces the user to log off from and log on to the database to continue his work. ORA-02392： exceeded session limit on CPU usage， you are being logged off Which action would you take to increase the session limit on CPU usage？（）

A.Modify the profile assigned to the user.
B.Modify the roles assigned to the users.
C.Modify the object privileges assigned to the user.
D.Modify the system privileges assigned to the users.
E.Modify the value for the RESOURCE_LIMIT parameter in the parameter file.

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單項選擇題

You find that the database performance degrades while you backup the PROD database using Recovery Manager （RMAN）. The PROD database is running in shared server mode. The database instance is currently using 60% of total operating system memory. You suspect the shared pool fragmentation to be the reason. Which action would you consider to overcome the performance degradation？（）

A.Configure Java Pool to cache the java objects.
B.Configure Streams Pool to enable parallel processing.
C.Increase Shared Pool size to cache more PL/SQL objects.
D.Increase Database Buffer Cache size to increase cache hits.
E.Configure Large Pool to be used by RMAN and shared server.
F.Increase the total System Global Area （SGA） size to increase memory hits.

單項選擇題

Which is the correct description of the significance of the ORACLE_HOME environmental variable？（）

A.It specifies the directory containing the Oracle software.
B.It specifies the directory containing the Oracle-Managed Files.
C.It specifies the directory for database files， if not specified explicitly.
D.It specifies the base directory of Optimal Flexible Architecture （OFA） .

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Which is the correct description of the significance of the ORACLE_HOME environmental variable？（）

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Which is the correct description of the significance of the ORACLE_HOME environmental variable？（）