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Microsoft PRO: Design & Develop Wndws Apps Using MS .NET Framework 4 Sample Questions:

1. You are designing a complex and critical Windows desktop application by using Microsoft .NET Framework 4 and Microsoft Visual Studio 2010.
You plan to implement a logging strategy for the application.
You need to record all unexpected errors that occur in the application.
What should you do?

A) Subscribe to the unhandled exception event handler for the application's dispatcher on the main application thread.
Record relevant application-specific information to an external log.
B) Create a global WIN 32 unhandled exception filter.
Record relevant application-specific information to an external log from within the filter.
C) Subscribe to the unhandled exception event handler for the AppDomain object.
Record relevant application-specific information to an external log.
D) Create a generic catch (Exception e) block in the Main method of the application.
Record relevant application-specific information to a log in the Main method.

2. You are upgrading a stand-alone Windows Presentation Foundation (WPF) application and an XAML browser application (XBAP) to Microsoft .NET Framework 4.
You plan to add .NET 4 types and members to both applications.
Both applications consume a common utility assembly that modifies files on a local file system. The utility assembly requires full trust.
You need to ensure that both applications can use the common utility assembly without any security-related exceptions.
What should you do?

A) Change the <supportedRuntime> element for the WPF application to the .NET Framework 3.5.
B) Apply the AllowPartiallyTrustedCallersAttribute attribute to the XBAP application.
C) Apply the AllowPartiallyTrustedCallersAttribute attribute to the utility assembly.
D) Change the <supportedRuntime> element for the XBAP application to the .NET Framework 3.5.

3. 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) Run the user interface from a new multi-threaded apartment (MTA) thread.
B) Use synchronous method calls from the user interface thread.
C) Use synchronous method calls from a thread other than the thread on which the user interface runs.
D) Use asynchronous method calls from the user interface thread.

4. You are designing a new feature for an existing Windows Forms application by using Microsoft .NET Framework 4.
The application contains multiple forms that are loaded into a parent Multiple Document Interface (MDI) form. Your company policy does not allow the use of third-party controls.
You need to ensure that the new feature meets the following requirements:
- It provides a three-dimensional scale model.
- It allows users to change the colors of the model and communicates the color
selections back to the application.
- It allows the model to scale, based on the user's client computer display resolution.
- It is a child form in the MDI application.
What should you do?

A) Design the new feature by using a Windows Presentation Foundation (WPF) user control.
Use the ElementHost class to host the WPF user control in the existing Windows Forms application.
B) Design the new feature in the existing Windows Forms application as a Windows form.
Add the form as a child form to the MDI window.
C) Design the new feature in a new Windows Presentation Foundation (WPF) application.
Host the existing application inside the new WPF application by using the WindowsFormsHost class.
D) Design the new feature in a new application by using Windows Presentation Foundation (WPF).
Invoke the new WPF application from the existing Windows Forms application.

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

Solutions: