Microsoft PRO: Design & Develop Wndws Apps Using MS .NET Framework 4 - 70-518 FREE EXAM DUMPS QUESTIONS & ANSWERS]

Question 1

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You are designing a distributed Windows Presentation Foundation (WPF) application. You have the following requirements:
Ensure that all errors are logged in a central location.
Ensure that the WPF application logs related errors within a single transaction.
Secure error information during transmission.
You need to recommend a strategy for collecting error information.
What should you recommend?

A. Create a Windows Communication Foundation (WCF) service. Use the basicHttpBinding protocol to transport the information. B. Write the information to the Windows Application log on each client system. Use Windows Management Instrumentation (WMI) to collect the results. C. Write the information to the Windows Application log on each client system. Use Windows Error Reporting to collect the results. D. Create a Windows Communication Foundation (WCF) service. Use the wsHttpBinding protocol to transport the information.

Discussion 0

Correct Answer: D Vote an answer

Question 2

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. An override to the Debug class B. A custom trace listener C. An override to the EventLog class D. A custom performance counter

Discussion 0

Correct Answer: C Vote an answer

Question 3

You are designing a .NET Framework 4 solution that includes a Windows Presentation Foundation (WPF) application. The WPF application connects to a Microsoft SQL Server 2008 database. You plan to deploy the WPF application to millions of client computers. The SQL Server database will be hosted in a data center.
The WPF application will query the database to provide type-ahead assistance as users enterdata.The WPF application will send a query after each character is entered. Each query will access multiple joined tables.
You need to recommend an approach for maximizing scalability of the solution.
What should you recommend?

A. Create a separate data layer with caching. B. Create stored procedures to abstract the tables. C. Denormalize the data to fewer tables. D. Use System.Runtime.Caching to cache query results on the client.

Discussion 0

Correct Answer: A Vote an answer

Question 4

You are reviewing an existing Windows application that uses .NET Framework 4.
When the user clicks a button, the application sequentially processes thousands of image
files contained in a directory.
The user interface becomes unresponsive while the application processes the files.
You have the following requirements:
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Modify the button's click event.
Increase application throughput by processing multiple image files concurrently.
Ensure that the user interface remains responsive while the application processes
the image files.
You need to recommend an approach for meeting the requirements.
What should you recommend?

A. Use the Parallel.ForEach() method to process the images concurrently. B. Iterate over the image files. For each image file, use the Process.Start() method to launch a console application that processes the image file. C. Iterate over the image files by using the Parallel.ForEach() method. For each image file, start a separate thread that processes the image file, by using the Thread.Start()method. D. Use the ThreadPool.QueueUserWorkItem() method to queue up a single work item that uses the Parallel.ForEach () method to process the image files concurrently.

Discussion 0

Correct Answer: D Vote an answer

Question 5

You design a Windows Presentation Foundation (WPF) application that interacts with a Windows Communication Foundation (WCF) Web service. The WCF Web service throws exceptions of type Exception.
The WPF application crashes when the WCF Web service throws an exception.
You need to recommend an error-handling strategy that allows users to submit updated data to the WCF Web service without restarting the WPF application.
What should you recommend?

A. Modify the Web service to throw custom exceptions derived from the Exception class. B. Modify the Web service to throw custom exceptions derived from the ApplicationException class. C. Modify the Web service to throw exceptions of type InvalidOperationException. D. Modify the Web service to throw exceptions of type FaultException.

Discussion 0

Correct Answer: D Vote an answer

Question 6

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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. Include the primary interop assembly for Excel 2007. C. Embed the Excel 2010 COM library. D. Embed the type information from the Excel 2010 COM library.

Discussion 0

Correct Answer: D Vote an answer

Question 7

You are designing an application by using Microsoft .NET Framework 4, Microsoft Visual Studio 2010, and Microsoft SQL Server 2008.
The application will be used by a sales team to enter sales orders and update customer information.
You need to ensure that the application meets the following requirements:
- Allows users to enter sales orders while their computers are disconnected from the
network
- Uploads sales orders to the server database when connected to the network
- Compiles against the .NET Framework 4 client profile
What should you use?

A. TheSystem.Web.Caching namespace classes B. Microsoft Sync Framework C. WCF services D. XML files

Discussion 0

Correct Answer: B Vote an answer

Question 8

You are designing an n-tier Windows application by using Microsoft .NET Framework 4, Microsoft Visual Studio 2010, and Microsoft SQL Server 2008.
The application will replace an existing client/server application. The existing application was created by using Microsoft Visual Basic 6.0 and consists of a series of COM components that access a SQL Server database.
You plan to move the existing COM components into a Windows Communication Foundation (WCF) tier.
You need to ensure that the COM components can be replaced without impacting the existing user interface (UI) tier.
You also need to ensure that the COM components can be replaced separately.
What should you do?

A. Create a common assembly on the WCF tier of the new application to interface with the COM components. B. Create a common assembly on the UI tier of the new application to interface with the COM components. C. Use .NET COM Interop on the client tier to interact directly with the COM components until they are replaced by the managed code. D. Convert the Visual Basic 6.0 source code to managed code by using the Visual Studio converters. Use these code components on the client/server application until they are replaced individually with the new permanent managed code functionality.

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Correct Answer: A Vote an answer

Question 9

You are designing an application by using Windows Presentation Foundation (WPF) and
Microsoft .NET Framework 4.
The user interface (UI) tier of the application will be implemented in WPF.
The middle tier of the application is implemented by using an existing COM component.
The middle tier contains a long-running method named ProcessDatA.
You need to ensure that users can continue to use the UI while ProcessData is running.
What should you do?

A. Call the Run method of the Dispatcher class before invoking ProcessDat B. Use an asynchronous worker thread to call ProcessDatA. C. Call the DoEvents method of the Application class before invoking ProcessDatA. D. Use the Invoke method of the Dispatcher class to call ProcessDatA.

Discussion 0

Correct Answer: B Vote an answer

Question 10

You are developing an application by using Microsoft .NET Framework 4.
The application will be used by all employees of your company. Local file stores on the computers are secure and inaccessible remotely.
You need to design a remote monitoring strategy to monitor the usage time of the application by each user.
What should you do?

A. Use the System.Management.Instrumentation namespace to publish startup, shutdown, and user idle time events of the application. Publish the events to Microsoft Operations Manager. B. Use the System.Management.Instrumentation namespace to issue event queries against methods that pass ProgressEvent and StoppedEvent arguments. Publish the events to the Event Log. C. Create a TraceLog object by using the System.Diagnostics element in the application configuration file. Add the TraceSource element for startup, shutdown, and user idle time events. D. Create a TraceLog object and the Trace object by using the System.Diagnostics element to trace startup, shutdown, and user idle time events throughout the application.

Discussion 0

Correct Answer: D Vote an answer