You are designing a .NET Framework 4 solution that contains a Windows Presentation Foundation (WPF) application and a Windows Communication Framework (WCF) Web service.
The WPF application will be deployed to users' desktops located in the company's corporate network. The WCF Web service will be deployed to a Web farm located in the company's perimeter network. The firewall between the perimeter
network and the Internet allows only HTTP and HTTPS traffic.
You need to recommend an approach for minimizing the attack surface of the WCF Web service.
What should you recommend?
A. Configure a WCF endpoint to use the MetTcpBinding binding.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 AppDomain object. Record relevant application-specific information to an external log.You are designing a Windows Presentation Foundation (WPF) application that connects to a data access layer on a server.
You have the following requirements for all security-related exceptions:
Exceptions that occur in the data access layer must be handled in a single exception handler in the WPF application.
Exceptions must pass customized messages back to the WPF application.
You need to recommend an approach for creating new exception classes in the data access layer.
From which class should you inherit?
A. System.AccessViolationExceptionYou are designing a Windows Presentation Foundation (WPF) application. The main window of the WPF application includes two panels: panel1 and panel2.
The WPF application must meet the following requirements:
Panel2 must be enabled only after users have entered values into multiple text boxes in panel1.
The background color of panel2 must be set to a specific color based on one of the text box values in panel1.
The background color of panel2 must be set at the same time the panel is enabled.
You need to recommend an approach for meeting the requirements.
What should you recommend?
A. Use a Command object.You are designing a Windows Presentation Foundation (WPF) application that accesses a business tier. The business tier is implemented as a Windows Communication Foundation (WCF) service and stores data in a Microsoft SQL Server
2008 database.
The WCF service will be accessed by external applications that do not use the .NET Framework.
You need to recommend an approach for passing data between layers.
What should you recommend?
A. Use custom .NET classes with XML serialization.You are designing a Windows Presentation Foundation (WPF) application that connects to a data access layer on a server.
You have the following requirements for all security-related exceptions:
Exceptions that occur in the data access layer must be handled in a single exception handler in the WPF application.
Exceptions must pass customized messages back to the WPF application.
You need to recommend an approach for creating new exception classes in the data access layer.
From which class should you inherit?
A. System.ApplicationExceptionYou are designing an application by using Windows Presentation Foundation (WPF), Microsoft .NET Framework 4, and Microsoft SQL Server 2008.
The application will contain several forms that include custom data validators.
You need to ensure that data is validated before the database updates occur. You also need to ensure that the validation logic can be reused.
How should you design the validation?
A. Implement the IDataErrorlnfo interface in the data class of the application.You are developing a Windows application.
The application will process data that is stored on the user's computer.
You plan to design a data storage strategy.
You need to ensure that the following requirements are met:
Local data can be accessed only by the application
Local data can be encrypted and compressed
Local data can be shared between multiple users by sending them the data file by email
Users must be able to open the data file directly from the email message
Which local data storage technology should you use?
A. XML FileYou are designing an n-tier .NET Framework 4 solution that includes a Windows Presentation Foundation (WPF) application. The WPF application will access data stored in a Microsoft SQL Server 2008 database by using the solution's data
access tier. The data access tier must also be available from within Microsoft Excel 2010.
You need to recommend a technology for accessing the data access tier.
Which technology should you recommend?
A. ADO.NET Entity Framework 4You are designing an n-tier .NET Framework 4 solution that includes a Windows Presentation Foundation (WPF) application and a Windows Workflow Foundation (WF) component. The WF component contains functionality to incorporate
frequently changing rules.
You need to recommend a tier for the deployment of the WF component that will not degrade the performance of the WPF application.
Which tier should you recommend?
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