As a database administrator you spend a lot of time observing and setting various storage parameter values for your application tables in order to gain performance benefits. Which task would you perform to reduce this overhead？（）A、Coalesce the application

第1题：

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

第2题：

In one of your online transaction processing （OLTP） applications， most users frequently modify the values， including the key values， of the application tables. Some users generate application reports by using multiple application tables.  What is the best table structure that you can use to gain optimal performance？（）

• A、heap table
• B、object table
• C、external table
• D、clustered table
• E、global temporary table
• F、index-organized table （IOT）

第3题：

You are using flat files as the data source for one of your data warehousing applications. You plan to move the data from the flat file structures to an Oracle database to optimize the application performance. In your database you have clustered tables. While migrating the data， you want to have minimal impact on the database performance and optimize the data load operation. Which method would you use to load data into Oracle database？（）

• A、use the external table population
• B、use the Oracle Data Pump export and import utility
• C、use the conventional path data load of SQL*Loader utility
• D、use the direct path data load of Oracle export and import utility

第4题：

You are developing a tax report for the payroll application. You created a before parameter form report trigger to create three temporary tables to store text that are need while the report is executed. Which report trigger would you use to delete these temporary tables?（）

• A、Before parameter form. 
• B、After parameter form. 
• C、Before report. 
• D、After report.

第5题：

You work as a database administrator for Certkiller .com. You have been asked to use a centralized administrative tool to administer your database servers and application servers. In order to achieve the objective， which component would you configure on each database server？（）

• A、Database Control
• B、Management Server
• C、Management Repository
• D、Application Server Control
• E、Oracle Management Agent

第6题：

You work in a company which uses SQL Server 2008. You are the administrator of the company database. Now you are in charge of a SQL Server 2008 instance. The instance has databases for a finance application and a manufacturing application. You want to put some limitation on the maximum CPU query time allowed by the applications, so you configure the Resource Governor to achieve this. But you notice that certain reports do not execute successfully any longer on the manufacturing application. You have to allow the manufacturing application to consume more CPU time, so you have to change the Resource Governor configuration.  Which Resource Governor component should you configure?（）  

• A、The workload group which is used by default 
• B、The workload group which is used by the finance application 
• C、The classifier function which identifies the finance application 
• D、The workload group which is used by the manufacturing application 

第7题：

You work in a company which uses SQL Server 2008. You are the administrator of the company database. Now you are in charge of a SQL Server 2008 instance. The instance contains a database named DB1. An application which is continuously connected uses DB1. The application extensively uses the INSERT command and triggers the population of multiple tables. Now you notice that the application has a poor performance. You doubt that this problem has something to do with blocking. You have to monitor the state of the instance at regular intervals while not affecting the application performance further.  Which tool should you use? （） 

• A、You should use Dynamic Management Views 
• B、You should use SQL Server Resource Governor 
• C、You should use SQL Server Profiler 
• D、You should use Windows System Monitor

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第13题：

You work as a database administrator for Certkiller .com. In your database server， the parameter PLSQL_OPTIMIZE_LEVEL has been set to 2. What would this setting achieve？（）

• A、It degrades the run time and compiler performance.
• B、It provides better run time and compiler performance.
• C、It provides better optimization of the statement during parse time.
• D、It forces the rule based optimizer to be used for statement optimization.
• E、It provides better run time performance but slightly degraded compiler performance. 
• F、It provides better run time performance but slightly degraded run time performance.

第14题：

You find that the execution time of reports in your datawarehouse application is significantly high. You suspect the lack of indexes to be the reason for the degradation in performance. Which advisory component would you refer to， in order to determine the appropriate indexes？（）

• A、 Memory Advisor
• B、 Segment Advisor
• C、 SQL Access Advisor
• D、 Automatic Workload Repository （AWR）
• E、 Automatic Database Diagnostic Monitor （ADDM）

第15题：

The production database has been functional for the last seven days. Because of application requirements， some of the initialization parameters were changed during run time without any comments. You have been asked to find out the value of the parameters when the instance was started. Which source would you use to locate this information？（）

• A、fixed views
• B、the alert log file
• C、the parameter file
• D、the server parameter file
• E、dynamic performance views

第16题：

In your datawarehousing application， you generate reports frequently. The data is static in the tables being used to generate reports. You are currently using joins， resulting in a large performance overhead. What kind of database structure would you use to reduce the response time of the query？（）

• A、hash clusters
• B、index clusters
• C、partitioned tables
• D、index­organized table （IOT）

第17题：

You are a professional level SQL Server 2005 database administrator in an international corporation named Wiikigo. You are experienced in implementing high-availability solutions， monitoring the database server， and design deployment. In the company， you major job is the deployment， maintenance and support of Microsoft SQL Server 2005. You work as a database administrator for your company. The users report the slow performance of a SQL Server 2005 application. You are required to identify the queries which perform slowly because of blocking. Which action should you perform？（）

• A、In a SQL Trace log file， you should look for queries with low duration values and high read and write values.
• B、In a query execution plan， you should look for queries with missing or out-of-date statistics.
• C、In a SQL Trace log file， you should look for queries with high duration values and low read and write values.
• D、In a query execution plan， you should look for queries with a large number of table scans.

第18题：

You work in a company which uses SQL Server 2008. You are the administrator of the company database. Now you are in charge of a SQL Server 2008 instance. There is a database named DB01 in the instance. The company CIO wants all the application developers can capture traces to troubleshoot the application that uses the database DB1， and they can perform this by using SQL Server Profiler. But they have to be given as little permission as possible. The company CIO assigns this task to you.  So what action should you perform to achieve this goal？（）  

• A、All the SQL Server logins of the application developers have to be added to a fixed server role. 
• B、All the database users of the application developers have to be added to a fixed database role 
• C、All SQL Server logins of the application developers should be given the appropriate server-level permissions. 
• D、All database users of the application developers should be given the appropriate database-level permissions. 

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