单项选择题

The Oracle Shared Server architecture reduces memory usage by reducing the number of server processes required. To process a request for a server process, the following tasks are performed:  
1.A shared server picks up the request from the request queue and processes the 
request. 
2.The dispatcher retrieves the response from the response queue. 
3.A user sends a request to its dispatcher. 
4.The dispatcher returns the response to the user. 
5.The shared sever places the response on the calling dispatcher’s response queue. 
6.The dispatcher places the request into the request queue in the SGA.  
Put the above task in the order in which they are performed.()

A.3,1,6,2,5,4
B.3,6,1,5,2,4
C.3,1,2,3,4,5
D.6,1,3,5,2,4
E.6,3,1,2,4,5
F.6,3,1,2,5,4


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A.Enables easier loading of multinational data. 
B.Uses a fixed-width Multibyte encoding sequence.
C.Asian characters are represented in three characters. 
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2.单项选择题What is true regarding a shared, server-side parameter file for a Real Application Cluster database? ()

A.It can contain parameters with distinct values for each distance.
B.It can contain only parameters with identical values for each instance.
C.It must contain an IFILE parameter for each instance’s individual parameter file.
D.It must be located in the default location for the primary instance’s parameter file.

3.单项选择题Why can setting too low a value for the FAST_START_MTTR_TARGET parameter reduce your overall database performance?()

A.Data blocks have to be written more frequently by DBWR. 
B.Redo blocks have to be written more frequently by LGWR. 
C.You need to substantially increase the size of your database buffer cache to hold the additional checkpoint records. 
D.You need to substantially increase the size of your redo buffer cache to hold the additional checkpoint records.

5.单项选择题What type of protection is implemented when the DBA issues the ALTER DATABASE SET STANDBY DATABASE PROTECTED; command?()

A.The standby database is protected against write operations. 
B.The primary database is protected against write operations. 
C.The primary database is protected against data loss and data divergence. 
D.The standby database is protected against data loss and data divergence. 

6.单项选择题What is the new Oracle Shared Server?()

A.An improved version of multithreaded server configuration. 
B.A connection pooling configuration where several clients are connected to the same server process. 
C.Two more database servers, which share data by means of database links; the client software is unaware to which server it is connected. 
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7.多项选择题Which three statements are true about the privileged connection options available in Oracle9i?()

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8.单项选择题You can control instance recover performance by setting parameters to define targets for()

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A.ALTER TABLE employees monitor index employee_idx_fk; 
B.ALTER INDEX employee_idx_fk monitoring on; 
C.ALTER TABLE employees monitor all indexes; 
D.ALTER INDEX employee_idx_fk monitoring usage; 

10.多项选择题Using a bitmap structure to manage database object space has several benefits over using freelist structures. Which three are benefits of managing space using automatic-segment-space managed objects?()

A.It readily responds to dynamic changes for concurrent access. 
B.It improves performance and space utilization in a multiple-instance environment. 
C.It requires fewer space related options then freelist managed structures. 
D.It improves performance for SYSTEM tablespaces where a high degree of concurrency is required.

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