单选题You work as a database administrator for Supportcenter.cn. You find that reports are running for a long time in your data warehousing applications. You suspect a lack of indexes is the reason for the performance degradation. Which advisory component would you refer to， in order to determine the appropriate indexes？（）A Memory AdvisorsB Segment AdvisorsC SQL Tuning and Access AdvisorsD Automated Workload Repository （AWR）E Automatic Database Diagnostic Monitor （ADDM）

考题 You work as a database administrator for Supportcenter.cn. You find that reports are running for a long time in your data warehousing applications. You suspect a lack of indexes is the reason for the performance degradation. Which advisory component would you refer to， in order to determine the appropriate indexes？（）A、Memory AdvisorsB、Segment AdvisorsC、SQL Tuning and Access AdvisorsD、Automated Workload Repository （AWR）E、Automatic Database Diagnostic Monitor （ADDM）

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考题 You work as a database administrator for Supportcenter.cn. 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 ControlB、Management ServerC、Management RepositoryD、Application Server ControlE、Oracle Management Agent

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考题 You observe that database performance has degraded over a period of time. While investigating the reason， you find that the size of the database buffer cache is not large enough to cache all the needed data blocks. Which advisory component would you refer to， in order to determine the required size of the database buffer cache？（） A、Memory AdvisorB、Segment AdvisorC、SQL Tuning AdvisorD、SQL Access AdvisorE、Automatic Database Diagnostic Monitor （ADDM）

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考题 You work as a database administrator for Certkiller .com. You find that reports are running for a long time in your data warehousing applications. You suspect a lack of indexes is the reason for the performance degradation. Which advisory component would you refer to， in order to determine the appropriate indexes？（）A、Memory AdvisorsB、Segment AdvisorsC、SQL Tuning and Access AdvisorsD、Automated Workload Repository （AWR）E、Automatic Database Diagnostic Monitor （ADDM）

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考题 You work as a database administrator for Certkiller .com. Users complain that their query is taking a long time to complete. You suspect the database buffer cache size to be the reason， and you define an alert to be generated when the buffer cache hit metric goes below 85%. When you observe the dynamic performance views， you find that the buffer cache hit ratio is 81% but no alerts are being generated. What could be the reason for this problem？（）A、The advisory memory has been turned off.B、The DB_CACHE_ADVICE parameter has been set to OFF in the parameter file.C、The STATISTICS_LEVEL parameter has been set to BASIC in the parameter file.D、The TIMED_STATISTICS parameter has been set to FALSE in the parameter file.E、The STATISTICS_LEVEL parameter has been set to TYPICAL in the parameter file.

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考题 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 AdvisorB、 Segment AdvisorC、 SQL Access AdvisorD、 Automatic Workload Repository （AWR）E、 Automatic Database Diagnostic Monitor （ADDM）

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考题 You work as a database administrator for Supportcenter.cn. Users complain that their query is taking a long time to complete. You suspect the database buffer cache size to be the reason， and you define an alert to be generated when the buffer cache hit metric goes below 85%. When you observe the dynamic performance views， you find that the buffer cache hit ratio is 81% but no alerts are being generated. What could be the reason for this problem？（）A、The advisory memory has been turned off.B、The DB_CACHE_ADVICE parameter has been set to OFF in the parameter file.C、The STATISTICS_LEVEL parameter has been set to BASIC in the parameter file.D、The TIMED_STATISTICS parameter has been set to FALSE in the parameter file.E、The STATISTICS_LEVEL parameter has been set to TYPICAL in the parameter file.

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考题 You work as a database administrator for Supportcenter.cn. In a production environment， users complain about the slow response time when accessing the database. You have not optimized the memory usage of the Oracle instance and you suspect the problem to be with the memory. To which type of object would you refer to determine the cause of the slow response？（）A、The trace fileB、The fixed viewsC、The data dictionary viewsD、The operating system log fieldsE、The dynamic performance views.

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考题 You work as a database administrator for Supportcenter.cn. You received the following error while working on your database： ORA-01555： snapshot too old ，In which situation would you receive such an error？（）A、You performed rollback after commit.B、If a log switch occurs in your database.C、Thearchiverfails to generate an archived log file.D、Instance recovery fails to find one of the redo log files.E、A long-running query is unable to get read-consistent image.F、If you perform manual undo management operations in auto mode.

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考题 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 populationB、use the Oracle Data Pump export and import utilityC、use the conventional path data load of SQL*Loader utilityD、use the direct path data load of Oracle export and import utility

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考题 You work as a database administrator for Supportcenter.cn. Users in the SupportCenter PROD database complain about the slow response when accessing the database. In the Active Session Waiting： Configuration page you find that the majority of the wait time is for the redo log buffer. Further investigation using the Run Queue graph and operating system tools reveals that the redo log files are on the same disks， and that the disk I/O for the redo log files is the reason for the performance degradation. Which two actions would you take to gain performance？（）A、Increase the size of redo log filesB、Increase the size of redo log bufferC、Increase the number of redo log filesD、Place the redo log files on a separate diskE、Decrease the number of redo log groups to twoF、Increate the number Log Writer （LGWR） process

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考题 You work as a database administrator for Certkiller .com. In a production environment， users complain about the slow response time when accessing the database. You have not optimized the memory usage of the Oracle instance and you suspect the problem to be with the memory. To which type of object would you refer to determine the cause of the slow response？（）A、The trace fileB、The fixed viewsC、The data dictionary viewsD、The operating system log fieldsE、The dynamic performance views.

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考题 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 the database administrator for your company. You find a problem that there are three reports which are running slowly. And through detailed analysis， you conclude that no error messages are generated from these reports. Not only the indexing strategy but also the status of the current indexes is tested by you. You confirm that the slow performance of the financial reports is not caused by it. Since you are the technical support， you are required to find out which statement is causing the slow performance. Which action should be performed first？（）A、SQL Server Profiler should be run with the Lock：Deadlock event class.B、The Database Engine Tuning Advisor （DTA） f should be run or at least one hour.C、SQL Server Profiler should be run with the TSQL_Duration template.D、The Database Engine Tuning Advisor （DTA） should be run with the default options.

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考题单选题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 the database administrator for your company. You find a problem that there are three reports which are running slowly. And through detailed analysis， you conclude that no error messages are generated from these reports. Not only the indexing strategy but also the status of the current indexes is tested by you. You confirm that the slow performance of the financial reports is not caused by it. Since you are the technical support， you are required to find out which statement is causing the slow performance. Which action should be performed first？（）A SQL Server Profiler should be run with the Lock：Deadlock event class.B The Database Engine Tuning Advisor （DTA） f should be run or at least one hour.C SQL Server Profiler should be run with the TSQL_Duration template.D The Database Engine Tuning Advisor （DTA） should be run with the default options.

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考题单选题You work as a database administrator for Supportcenter.cn. You find that reports are running for a long time in your data warehousing applications. You suspect a lack of indexes is the reason for the performance degradation. Which advisory component would you refer to， in order to determine the appropriate indexes？（）A Memory AdvisorsB Segment AdvisorsC SQL Tuning and Access AdvisorsD Automated Workload Repository （AWR）E Automatic Database Diagnostic Monitor （ADDM）

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考题单选题You work as a database administrator for Supportcenter.cn. 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 ControlB Management ServerC Management RepositoryD Application Server ControlE Oracle Management Agent

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考题单选题You work as a database administrator for Certkiller .com. You find that reports are running for a long time in your data warehousing applications. You suspect a lack of indexes is the reason for the performance degradation. Which advisory component would you refer to， in order to determine the appropriate indexes？（）A Memory AdvisorsB Segment AdvisorsC SQL Tuning and Access AdvisorsD Automated Workload Repository （AWR）E Automatic Database Diagnostic Monitor （ADDM）

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考题单选题You are using flat files as the data source for one of your data warehousing applications. To optimize the application performance， you plan to move the data from the flat files to clustered tables in an Oracle database.While migrating the data， you want to have minimal impact on the database performance and optimize the dataload operation. Which method would you use to load data into the 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 the SQL*Loader utility.D Use the INSERT INTO...SELECT command to load the data

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考题单选题You work as a database administrator for Certkiller .com. In a production environment， users complain about the slow response time when accessing the database. You have not optimized the memory usage of the Oracle instance and you suspect the problem to be with the memory. To which type of object would you refer to determine the cause of the slow response？（）A The trace fileB The fixed viewsC The data dictionary viewsD The operating system log fieldsE The dynamic performance views.

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考题单选题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 AdvisorB Segment AdvisorC SQL Access AdvisorD Automatic Workload Repository （AWR）E Automatic Database Diagnostic Monitor （ADDM）

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考题单选题You observe that a database performance has degraded over a period of time. While investigating the reason， you find that the size of the database buffer cache is not large enough to cache all the needed data blocks. Which advisory component would you refer to， in order to determine that required size of the database buffer cache？（）A Memory AdvisorB Segment AdvisorC SQL Tuning AdvisorD SQL Access AdvisorE Automatic Database Diagnostic Monitor （ADDM）

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考题单选题You work as a database administrator for Supportcenter.cn. Users complain that their query is taking a long time to complete. You suspect the database buffer cache size to be the reason， and you define an alert to be generated when the buffer cache hit metric goes below 85%. When you observe the dynamic performance views， you find that the buffer cache hit ratio is 81% but no alerts are being generated. What could be the reason for this problem？（）A The advisory memory has been turned off.B The DB_CACHE_ADVICE parameter has been set to OFF in the parameter file.C The STATISTICS_LEVEL parameter has been set to BASIC in the parameter file.D The TIMED_STATISTICS parameter has been set to FALSE in the parameter file.E The STATISTICS_LEVEL parameter has been set to TYPICAL in the parameter file.

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考题单选题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 populationB use the Oracle Data Pump export and import utilityC use the conventional path data load of SQL*Loader utilityD use the direct path data load of Oracle export and import utility

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考题单选题You work as a database administrator for Supportcenter.cn. In a production environment， users complain about the slow response time when accessing the database. You have not optimized the memory usage of the Oracle instance and you suspect the problem to be with the memory. To which type of object would you refer to determine the cause of the slow response？（）A The trace fileB The fixed viewsC The data dictionary viewsD The operating system log fieldsE The dynamic performance views.

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考题单选题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 AdvisorB Segment AdvisorC SQL Access AdvisorD Automatic Workload Repository （AWR）E Automatic Database Diagnostic Monitor （ADDM）

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考题单选题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 which contains a database. Now your company CIO assigns a task to you. You have to check the performance of the SQL Server 2008 instance. You have to find out which common language runtime (CLR) queries takes the longest-running time. So in the options below, which dynamic management view should you choose to use?（）A sys.dm_os_wait_stats B sys.dm_exec_requests C sys.dm_exec_sessions D sys.dm_exec_query_stats

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考题单选题You observe that database performance has degraded over a period of time. While investigating the reason， you find that the size of the database buffer cache is not large enough to cache all the needed data blocks. Which advisory component would you refer to， in order to determine the required size of the database buffer cache？（）A Memory AdvisorB Segment AdvisorC SQL Tuning AdvisorD SQL Access AdvisorE Automatic Database Diagnostic Monitor （ADDM）

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考题单选题You work as a database administrator for Supportcenter.cn. You received the following error while working on your database： ORA-01555： snapshot too old ，In which situation would you receive such an error？（）A You performed rollback after commit.B If a log switch occurs in your database.C Thearchiverfails to generate an archived log file.D Instance recovery fails to find one of the redo log files.E A long-running query is unable to get read-consistent image.F If you perform manual undo management operations in auto mode.

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