多项选择题Which two statements are true regarding the use of UTF-16 encoding? ()

A.Enables easier loading of multinational data. 
B.Uses a fixed-width Multibyte encoding sequence.
C.Asian characters are represented in three characters. 
D.Used a variable-width Multibyte encoding sequence. 
E.European characters are represented on one or two bytes. 


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1.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.

2.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.

4.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. 

5.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. 
D.A configuration of Real Application Cluster where the client connection is routed to the least busy instance. 

6.多项选择题Which three statements are true about the privileged connection options available in Oracle9i?()

A.The CONNECT INTERNAL is disallowed. 
B.The Server Manager tool is no longer supplied. 
C.The listener must be running to make a connection. 
D.The use of remote password login file (orapw<sid>) is unchanged.

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

A.The size of the redo buffer in SGA. 
B.The instance that will perform recovery in Real Application Cluster database. 
C.The number of blocks to be read during instance recovery, or the time needed to complete instance recovery. 
D.The number of passes through the redo logs made by the recovery process to identify blocks needing recovery.

8.单项选择题The EMPLOYEES table has six indexes and DML operations are slow. Which command begins monitoring the EMPLOYEE_IDX_FK index to determine whether it has been used by an execution plan?()

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; 

9.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.

10.单项选择题When does Oracle9i flag an index as being used in the V$OBJECT_USAGE view?() 

A.During a query’s parse time only. 
B.During a query’s execution time only. 
C.During any kind of DML statement execution. 
D.During the execution of an INSERT statement only.

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Which one of the following files includes the parameter NAMES.DIRECTORY_PATH(hostname)?()

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As a result of a media failure, the current online redo log group is corrupted. The database crashes, as the current online group is inaccessible. Which type of incomplete recovery are you most likely to perform? ()

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Which script must you to query to display the code associated with RMAN stored scripts?()

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Which Oracle background process frees SGA resources that were allocated to a user process that failed?()

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