最新的Microsoft 070-518免費考試真題

問題1

---
You are designing a .NET Framework 4 solution. The solution contains a Windows Presentation Foundation (WPF) application and a Windows Communication Foundation (WCF) Web service.
The WPF application uses the WCF Web service to store data in a Microsoft SQL Server 2008 database.
You have the following requirements:
Ensure that the WPF application functions while users' computers are offline.
Minimize the time spent sending data to the WCF Web service.
Minimize disk space requirements for data storage.
You need to recommend an approach for synchronizing data between the WPF application and the database.
Which two actions should you recommend? (Each correct answer presents part of the solution. Choose two.)

A. Store data in DataSet objects. Serialize data locally by using XML serialization.

B. Create a local caching solution that periodically checks for Internet connectivity and writes directly to the local data store and to the WCF Web service.

C. Store data in custom business objects. Serialize data locally by using custom serialization.

D. Create a local caching solution that periodically checks for Internet connectivity, uses local memory, and batches changes to the WCF Web service.

正確答案: A,C

問題2

You are updating a Windows desktop client application that was created by using Microsoft .NET Framework 4 and Microsoft Visual Studio 2010.
The application displays data derived from several database queries. The display takes a long time to update.
The application currently uses a BackgroundWorker thread and a Parallel.ForEach statement on that thread.
Users have requested a modification to the program that would allow them to interrupt the display of data and begin processing a new and different query.
You decide to provide a new Stop button on the user interface (UI) to allow the user to terminate the current data display and initiate the new query. The main UI thread must be notified when the current data processing is terminated so that the new query can be started.
You need to implement the Stop button event handler.
What should you do?

A. Use the DoWork handler of the worker thread and test a shared status value.
Use a break statement to terminate the Parallel.ForEach loop.

B. Use a CancelAsync() function to cancel the worker thread.
In the Parallel.ForEach loop, test the CancellationPending property.
If the property is set to true, perform the following tasks:
Write a loopStatus.Stop() statement.
Set the DoWorkEventArgs.Cancel property to true.
Use a return statement to exit from the loop.

C. Use the DoWork handler of the worker thread and test a shared status value.
Use the Thread.Abort() statement to terminate the worker thread. Start a new BackgroundWorker thread from the main UI thread.

D. Use the DoWork handler of the worker thread and test a shared status value.
Use a loopStatus.Stop() statement to terminate the Parallel.ForEach loop.

正確答案: B

問題3

You are designing an n-tier solution that connects to a Microsoft SQL Server 2008 database.
You plan to deploy the database to development machines and to a staging database server from within Microsoft Visual Studio 2010.
You plan to set up separate build configurations for development and staging. You also plan to deploy to multiple production database servers managed by an outside vendor.
You must not allow the outside vendor to access the Visual Studio projects.
You need to recommend an approach for configuring and deploying the production database servers.
Which two actions should you recommend? (Each correct answer presents part of the solution. Choose two.)

A. Use SQL Server 2008 Management Studio to deploy the production databases.

B. Use a Visual C# SQL CLR Database Project.

C. Use VSDBCMD to deploy the production databases.

D. Use a SQL Server 2008 Database Project.

正確答案: A,B

問題4

---
You are designing updates to a Windows solution that processes complex scientific datA.The solution extracts analyzed data from Microsoft Excel by using an application-level add-in.
You have the following requirements:
Deploy the Excel add-in to client machines with the application.
Ensure that the solution supports Excel 2007 and Excel 2010.
Minimize the size of the deployment package.
You need to recommend an approach that meets the requirements.
What should you recommend?

A. Include the primary interop assembly for Excel 2010.

B. Embed the type information from the Excel 2010 COM library.

C. Embed the Excel 2010 COM library.

D. Include the primary interop assembly for Excel 2007.

正確答案: B

問題5

You are analyzing a Windows client application that uses Microsoft Visual Studio 2010 and
Microsoft SQL Server 2008.
The application updates two database tables from the main user interface (UI) thread.
You need to ensure that the following requirements are met:
---
The database tables are either updated simultaneously or not updated at all.
Users are notified of the success or failure of the updates.
Users are able to perform other tasks during the update process.
What should you do?

A. Use TransactionScope in a using block on the main thread.
Create a BackgroundWorker thread within the block.
Move the database updates to the BackgroundWorkerDoWork method.

B. Move the database update logic to a BackgroundWorker thread.
Ensure that the thread is enclosed in a TransactionScope using block in the BackgroundWorkerDoWork method

C. Use TransactionScope in a using block on the UI thread.
Create a DependentTransaction object within the block and pass the object to the BackgroundWorkerReportProgress method.
Use the object in the ReportProgress method to create a new TransactionScope block.

D. Use TransactionScope in a using block on the UI thread.
Batch the database updates by setting the DbDataAdapter.UpdateBatchSize property to 2.

正確答案: B

問題6

You are designing a Windows Presentation Foundation (WPF) application.
The application calls methods that perform long-running computational tasks.
You need to recommend an approach for ensuring that the application remains responsive while the tasks are executing.
What are two possible ways to achieve this goal? (Each correct answer presents a complete solution. Choose two.)

A. Use asynchronous method calls from the user interface thread.

B. Run the user interface from a new multi-threaded apartment (MTA) thread.

C. Use synchronous method calls from a thread other than the thread on which the user interface runs.

D. Use synchronous method calls from the user interface thread.

正確答案: B,C

問題7

You are packaging updates for multiple Windows Presentation Foundation (WPF) applications by using Microsoft .NET Framework 4.
Updates to the applications and to third-party control files are available. Updates to the applications have dependencies upon updates to the third-party control files. An update script is run at logon that allows only a single command to be executed.
You need to package the application updates and updates to the third party controls to ensure that they are successfully installed.
What should you do?

A. Prepare the installers for individual application updates and include the third-party control files as a merge module.

B. Prepare the installers for individual application updates and include the third-party control files as individual files.

C. Package application updates as a single installer. Package third-party control files as a
separate installer.

D. Package application updates as a single installer. Package third-party control files as a merge module.

正確答案: D

問題8

You are designing an n-tier solution that includes a Windows Presentation Foundation (WPF) client application. The WPF application connects to a middle-tier server that runs the data access layer.
The data access layer connects to a Microsoft SQL Server 2008 database and to a mainframe-based database.

A. Create a data access layer class that uses a database factory class to access all databases. Add the connection string information for the databases to the configuration file for the data access layer class.

B. Create a data access layer class that uses a database factory class to access all databases. Add the connection string information for the databases to the configuration file for the WPF application.

C. Add the connection string information for the databases to the configuration file for the WPF application. Implement a database factory class from within the WPF application.

D. Add the connection string information for the databases to the configuration file for the WPF application. Implement one class in the WPF application for each data source.

正確答案: A

問題9

You are designing a Windows Presentation Foundation (WPF) application.
You have the following requirements:
- Run client-side validation tests on a large result set from a Microsoft SQL Server 2008 database. - Validate each row of data without storing the entire result set in memory.
You need to recommend a data access technology.
What should you recommend?

A. ADO.NET using SqIDataReader objects

B. ADO.NET using SqIDataAdapter objects and DataSet objects

C. LINQ to SQL using the ElementAt() method

D. LINQ to Entities using the ElementAt() method

正確答案: A

問題10

You are designing an application by using Microsoft .NET Framework 4 and Microsoft Visual Studio 2010.
You plan to design an instrumentation strategy for the application.
You need to ensure that the strategy meets the following requirements:
- Captures detailed performance information. - Enables or disables diagnostic messages by using an application configuration option without requiring the application to restart.
What should you design?

A. A custom performance counter

B. An override to the Debug class

C. A custom trace listener

D. An override to the EventLog class

正確答案: D

最新的Microsoft PRO: Design & Develop Wndws Apps Using MS .NET Framework 4 - 070-518免費考試真題

聯系我們

站內鏈接

最新更新