單項(xiàng)選擇題

Users complain about the slow response time of queries. While investigating the cause you find that the Oracle Instance is not configured to cache all of the data blocks to satisfy the users’queries. Which component of the Oracle Instance would you change to improve performance？（）

A.Java pool
B.Large pool
C.Shared pool
D.Streams pool
E.Library cache
F.Redo log buffer
G.Data dictionary cache
H.Database buffer cache

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單項(xiàng)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 onto 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.

單項(xiàng)選擇題

You have created a baseline metric， DISK_IO_BL， for the disk I/O metrics in your PROD database and you have been getting notifications whenever the database performance degrades. You optimize the database I/O to gain the performance and you decide to remove the baseline metrics. Which method would you use to remove the DISK_IO_BL baseline metrics？（）

A.The baseline， once created， cannot be removed.
B.Disable the baseline metrics in the Database Control Manage Metrics page.
C.The baseline will be automatically removed once the database performance has been optimized.
D.Drop the baseline metrics by usingDBMS_WORKLOAD_REPOSITORY.DROP_BASELINE procedure.

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Users complain about the slow response time of queries. While investigating the cause you find that the Oracle Instance is not configured to cache all of the data blocks to satisfy the users’queries. Which component of the Oracle Instance would you change to improve performance？（）

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Users complain about the slow response time of queries. While investigating the cause you find that the Oracle Instance is not configured to cache all of the data blocks to satisfy the users’queries. Which component of the Oracle Instance would you change to improve performance？（）