You are designing an application by using Microsoft Visual Studio .NET 2008 and the .NET Framework 3.5.
The application implements the following design:
– Client applications will be accessed by using a mobile device or a browser.
– All client applications will connect to a Windows Communication Foundation (WCF) service.
– All client applications will use Microsoft SQL Server Compact 3.5.
You need to ensure that the client applications can perform the following tasks:
– Maintain local copies of data offline.
– Synchronize changes.
– Detect data conflicts.
What should you do?

You create an application by using Microsoft Visual Studio .NET 2008 and the .NET Framework 3.5. The application contains several classes.
A code review reveals redundant business logic within the classes in the application.
You need to eliminate the redundant business logic in the classes. What should you do?

You create a Windows Communication Foundation (WCF) application by using Microsoft Visual Studio 2008 and the .NET Framework 3.5.
You plan to implement an instrumentation strategy for the application.
You add the following code fragment in the configuration file of the application.
<system.diagnostics>
<sources>
<source name=”System.ServiceModel.MessageLogging”>
<listeners>
<add name=”messages” type=”System.Diagnostics.XmlWriterTraceListener” initializeData=”c:\logs\messages.svclog” />
</listeners>
</source>
</sources>
</system.diagnostics>

You need to ensure that the instrumentation strategy meets the following requirements:
– Incoming and outgoing messages are logged completely.
– Secure messages must be logged decrypted.
What should you do? (Each correct answer presents part of the solution. Choose two.)

You create an application by using Microsoft Visual Studio .NET 2008 and the .NET Framework 3.5. The application includes a Windows Forms user interface.
The user interface connects to the business logic layer and binds the controls directly to the objects that are exposed by the business logic layer.
A class in the business logic layer performs validation of input values and implements the IDataErrorInfo interface.
You need to provide feedback to users when the business logic layer reports a validation error.
What should you do?

You create an ASP.NET application by using Microsoft Visual Studio .NET 2008 and the .NET Framework 3.5.
The application is installed on a Microsoft Windows 2003 server and manages several expense accounts.
The application uses Forms authentication to manage user logins. The user login information is stored in a database.
You need to generate a report that displays the user access details of the expense accounts for each user login.
What should you do?

You are designing a class library by using the .NET Framework 3.5 and Microsoft SQL Server 2008.
The class library will be used by several .NET applications. The class library will contain a utility class that executes advanced mathematical operations.
You need to design the utility class to meet the following requirements:
– It can be accessed only by other classes in the same .NET assembly.
– It can be instantiated only once.
What should you do?

You create a Web Service by using Microsoft Visual Studio .NET 2008 and the .NET Framework 3.5.
The Web service will retrieve data from text files in a network share. The network share uses the NTFS file system permissions.
You need to design a component that allows users to access only the files for which they have the necessary permission.
What should you do?

You create an application by using Microsoft Visual Studio .NET 2008 and the .NET Framework 3.5.
The application will be used by multiple types of users. The application will also interact with external applications.
You need to design the interaction among the application, the users of the application, and the external applications.
What should you do?

You create an application by using Microsoft Visual Studio .NET 2008 and the .NET Framework 3.5. You plan to deploy the application.
The .NET Framework 3.5 is not installed on all client computers.
You need to deploy the application only on client computers that have the .NET Framework 3.5 installed.
What should you do?

You create an application by using Microsoft Visual Studio .NET 2008 and the .NET Framework 3.5.
The application includes a class that contains several public methods that modify the object state.
Object state is encapsulated in private data members. You need to ensure that your unit tests meet the following requirements:
– Call public methods.
– Validate the expected behavior by checking the values of private data members.
– Fail to compromise object security or encapsulation.
What should you do?