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单选题
If an application issues the same query more than once in the same Unit of Work, which isolation level will not permit this application to see additional rows inserted by other applications?（）
A
Read Stability (RS)
B
Repeatable Read (RR)
C
Uncommitted Read (UR)
D
Cursor Stability (CS)
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Which of the following is TRUE for the DB2 isolation level Cursor Stability (CS)?（）A、An application process acquires at least a share lock on the current row of every cursor.B、Any row that is read during a unit of work cannot be changed by other application processes until the unit of work is complete.C、Any row changed by another application process can be read, even if the change has not been committed by that application process.D、An application process that issues the same query more than once in a unit of work will not see additional rows caused by other application processes appending new information to the database.
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If an application issues the same query more than once in the same Unit of Work, which isolation level will not permit this application to see additional rows inserted by other applications?（）A、Read Stability (RS)B、Repeatable Read (RR)C、Uncommitted Read (UR)D、Cursor Stability (CS)
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You work in a company which is named Wiikigo Corp. The company 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 report which is often executed during business time. There is a stored procedure that is used as the data source for the report. You get a report from users saying that they receive the data returned by the report but the data is inconsistent. As the technical support, you check and find that phantom reads cause this problem. You must make sure that consistent data is returned by the report while not affecting other users. So what action should you perform to achieve this goal?（） A、You should configure the database for Read Committed Snapshot isolation. B、You should modify the stored procedure to use the Snapshot isolation level C、You should configure the database for Auto Update Statistics asynchronously D、You should modify the stored procedure to use the Repeatable Read isolation level
考题
单选题Application A currently holds an exclusive lock on a single row and application B tries to access that row. If lock timeout is set to -1 and both applications are using isolation level RS, which of the following will occur?（）A
Applications A and B will cause a deadlock situationB
Application B will read the previous version of the rowC
Application B will read the row and see uncommitted changes made by application AD
Application B will be placed in a lock-wait state until application A releases its lock
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多选题A common approach to solve application performance issues is to add more hardware. Which two reasons describe why this alone does not always solve performance problems?（）AThere may be a bottleneck in the application that additional hardware would not solve.BAdding more hardware is costly and time consuming.CAdding hardware at the application layer may place additional load on an already overloaded database, network appliance, or storage system.DAdding more hardware may introduce new configuration requirements that need to be tested.
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多选题You create a Microsoft ASP.NET Web application by using the Microsoft .NET Framework version 3.5. You deploy the application on a Microsoft IIS 6.0 Web server. The server runs on a worker process isolation mode， and it hosts the .NET Framework version 1.1 Web applications. When you attempt to browse the application， the following error message is received： "It is not possible to run different versions of ASP.NET in the same IIS process. Please use the IIS Administration Tool to reconfigure your server to run the application in a separate process." You need to ensure that the following requirements are met： all the applications run on the server all the applications remain in process isolation mode all the applications do not change their configuration. Which two actions should you perform？（）ACreate a new application pool and add the new application to the pool.BConfigure the IIS 6.0 to run the WWW service in the IIS 5.0 isolation mode.CConfigure the new application to use the .NET Framework version 2.0 in the IIS 6.0 Manager.DSet autoConfig=false on the processModel property in the machine.config file.EDisable the Recycle worker processes option in the Application Pool Properties dialog box.
考题
单选题You work in a company which is named Wiikigo Corp. The company 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 report which is often executed during business time. There is a stored procedure that is used as the data source for the report. You get a report from users saying that they receive the data returned by the report but the data is inconsistent. As the technical support, you check and find that phantom reads cause this problem. You must make sure that consistent data is returned by the report while not affecting other users. So what action should you perform to achieve this goal?（）A
You should configure the database for Read Committed Snapshot isolation. B
You should modify the stored procedure to use the Snapshot isolation level C
You should configure the database for Auto Update Statistics asynchronously D
You should modify the stored procedure to use the Repeatable Read isolation level
考题
单选题You need to resolve the blocking issue that is affecting the performance of the CRM system. What should you do?（）A
Replace the named query with an SQL view.B
Set the transaction isolation level to serializable in the named query.C
Set the source database to use snapshot isolation.D
Set the transaction isolation level to repeatable read in the named query.
考题
多选题You create Microsoft Windows-based applications. You create an application that requires users to be authenticated by a domain controller. The application contains a series of processor intensive method calls that require different database connections. A bug is reported during testing. The bug description states that the application hangs during one of the processor-intensive calls more than 50 percent of the times when the method is executed. Your unit test for the same method was successful.You need to reproduce the bug. Which two factors should you ascertain from the tester？（）ASecurity credentials of the logged on userBCode access security settingsCHardware settingsDNetwork settingsEDatabase settings
考题
单选题In order to ensure best read performance， which of the following indicates how large an application’s read buffer size should be if the filesystem to be read is striped across N disks using LVM striping？（）A
N times the stripe unit sizeB
N times the VMM minfree parameterC
The same value as that of the VMM maxfree parameterD
The same value as that of the VMM maxrndwrt parameter
考题
单选题You deploy more than one application to the same WebLogic container. The security is set on JavaEE level and all deployed JavaEE applications use the same security roles. What is your recommendation for an architecture with those requirement?（）A
Combine all applications into a single one.B
Define global roles on the WebLogic Domain level.C
Use Ms Active Directory to keep the roles there. D
Use Oracle Identity and Access Management solution to simplify the management.E
Keep role mapping in the external WebLogic Role Mapped developed for that solution.
考题
多选题You use Microsoft .NET Framework 4 to create a custom Windows Presentation Foundation (WPF) application. Your environment includes several WPF applications. The applications use the same logo and style configuration as part of a corporate standard. You need to ensure that the existing applications can be updated to use the same logo and style settings without recompiling. Which two actions should you perform?（）AMark the resource as an embedded resource in each application.BCreate a resource in an XAML file that contains the logo and style configurations.CCreate a resource in a custom control that contains the logo and style configurations.DAdd the resource as a ResourceDictionary in the MergedDictionaries collection of each application.EUse ResourceManager to read the content of the resource. Manually assign the style configurations included in the resource file to the appropriate control in each application.
考题
单选题Application A is designed to execute the following SQL statements within a single Unit of Work (UOW). UPDATE employee SET salary = salary * 1.1 WHERE empno='000010' UPDATE department SET deptname = 'NEW dept' WHERE deptno='A00'Application B is designed to execute the following SQL statements within a single Unit of Work (UOW). UPDATE department SET deptname = 'OLD DEPT' WHERE deptno='A00' UPDATE employee SET salary = salary * 0.5 WHERE empno='000010' Application A and application B execute their first SQL statement at the same time. When application A and application B try to execute their second SQL statement, a deadlock occurs. What will happen?（）A
The database manager will rollback the transaction in both applications.B
The database manager will rollback the transaction in one of the two applications.C
Application B will successfully update the EMPLOYEE and DEPARTMENT tables; Application A will be placed in a lock wait state.D
Application A will successfully update the EMPLOYEE and DEPARTMENT tables; Application B will terminate when the lock timeout value is reached.
考题
单选题Which of the following is TRUE for the DB2 isolation level Cursor Stability (CS)?（）A
An application process acquires at least a share lock on the current row of every cursor.B
Any row that is read during a unit of work cannot be changed by other application processes until the unit of work is complete.C
Any row changed by another application process can be read, even if the change has not been committed by that application process.D
An application process that issues the same query more than once in a unit of work will not see additional rows caused by other application processes appending new information to the database.
考题
单选题Application A holds an Update lock on a single row and application B is trying to read that row. If both applications are using isolation level UR, which of the following will occur?（）A
Application B will read the row.B
Applications A and B will cause a deadlock situation.C
Application B will wait until application A releases the Update lock.D
Application A will be terminated so that application B can read the row.
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