Microsoft 70-518 Value Pack (Frequently Bought Together)

You are designing an application by using Windows Presentation Foundation (WPF) and Microsoft .NET Framework 4.
The application retrieves customer data from an enterprise resource planning (ERP) system.
You need to ensure that the following requirements are met: - Customer data is retrieved only once.
- Customer data is available on multiple forms within the application.
- Forms can implement Two-Way binding to the customer datA.
What should you do?

• A. Store the results of the query in a local XML file. Bind all forms to an XMLDataAdapter object that references the local XML file.
• B. Design a static class for the data that implements the INotifyPropertyChanged interface. Raise the PropertyChanged event to notify the forms when data is changed.
• C. Store the results of the query in a static DataTable object that is used by all the forms.
• D. Design a static class for the data that implements the IObservable interface. Subscribe to the static class from each of the forms that use the datA.

You are preparing to deploy a solution that includes a Windows Forms application and several COM components. Unsigned interop assemblies have been created for each of the COM components.
You need to recommend an approach for deploying the solution.
What should you recommend?

• A. Deploy the Windows Forms application and interop assemblies to a folder on the client computer. Sign the interop assemblies.
• B. Deploy the Windows Forms application to a folder on the client computer. Deploy the COM components and interop assemblies to the Global Assembly Cache (GAC). Register the COM components.
• C. Deploy the Windows Forms application, COM components, and interop assemblies to a folder on the client computer. Register the COM components.
• D. Deploy the Windows Forms application and COM components to a folder on the client computer. Deploy the interop assemblies to the Global Assembly Cache (GAC).

You are designing a Windows Presentation Foundation (WPF) application.
The WPF application must run against either Microsoft SQL Server 2008 or a third-party
database system without duplicating data accesslogic.
You need to recommend a data access technology.
What should you recommend?

• A. LINQ to SQL
• B. ADO.NET using DataSet objects and SqlDataReader objects
• C. ADO.NET using DataSet objects and SqIDataAdapter objects
• D. LINQ to Entities

You are evaluating an existing Windows Presentation Foundation (WPF) application. The WPF application runs in a Web browser as a XAML browser application (XBAP). The WPF application runs in the Intranet zone with Full Trust. A client certificate for the WPF application has been generated.
Users are unable to access the WPF application. You locate the following message in the security log: "User has refused to grant required permissions to the application." Users state that they are clicking OK in all message boxes that appear.
You need to recommend an approach for ensuring that the WPF application runs correctly on all client computers.
Which two actions should you recommend? (Each correct answer presents part of the solution. Choose two.)

• A. Sign the ClickOnce manifest for the WPF application.
• B. Import the client certificate to the Trusted Root store.
• C. Modify the ClickOnce manifest for the WPF application to grant the appropriate permissions.
• D. Use the Code Access Security Policy Tool to grant the appropriate permissions.

You are designing a Windows Presentation Foundation (WPF) data entry application. The application uses data binding to bind controls in the user interface (UI) to business objects. The UI uses validation rules for each input control.
The data validation rules change based on the state of the business object.
You need to recommend a validation strategy that will allow changes to the validation rules without changes to the UI code.
What should you recommend?

• A. Set the ValidationStep attribute on ValidationRule elements to RawProposedValue.
• B. Implement the IDataErrorInfo interface in the business objects and replace all ValidationRule elements with ExceptionValidationRule elements.
• C. Implement the IDataErrorInfo interface in the business objects and replace all ValidationRule elements with DataErrorValidationRule elements.
• D. Set the ValidationStep attribute on ValidationRule elements to CommittedValue.