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 use an existing unmanaged component in the application. The unmanaged component includes two methods to calculate taxes.
The first method calculates taxes for individuals and the second method calculates taxes for organizations. You need to provide a single method to calculate taxes.
You also need to consume the unmanaged component within the application.
Which two actions should you perform? (Each correct answer presents part of the solution. Choose two.)

You create a class library by using Microsoft Visual Studio .NET 2008 and the .NET Framework 3.5.
When an instance of the class is created, the class acquires a handle from the WIN32 DLL and saves the handle to a data member.
You need to identify a strategy to ensure that the Win32 DLL handle releases resources when they are no longer being used.
What should you do?

You create an application by using Microsoft Visual Studio .NET 2008 and the .NET Framework 3.5.
You are creating a high-level design for the application. You identify several functionalities that can be developed as reusable components.
You need to identify the public interface for each component from the application design.
What should you do?

You create an application by using Microsoft Visual Studio .NET 2008 and the .NET Framework 3.5.
You are designing the database schema of the application.
The database schema is as shown in the exhibit. (Click the Exhibit button.)
You need to ensure that the design meets the following requirements:
– The database contains no duplicate data.
– A category can contain zero or more products.
– Each product can be associated with zero or more categories.
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 uses the Session object to store data. The application is currently deployed to a single server.
You need to ensure that the application is available in the event of failure of any single server.
Which two actions should you perform? (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 design specifies the following components:
– A user interface implemented as an ASP.NET 3.5 Web application
– A Microsoft SQL Server 2005 database to store business data
– A Windows Communication Foundation (WCF) service that authenticates users that have their credentials stored in the SQL Server database
– A business data service to transfer data between the user interface and the SQL Server database
– In future releases, the application must also be able to authenticate business partners who use non-Microsoft directory servers to store user credentials.
You need to ensure that the application design meets the extensibility requirements.
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 will be deployed to a Microsoft Windows Server 2008 server.
Intranet users will access the application by using Windows Vista client computers.
The Web server, client computers, and Windows user accounts are located in the same Active Directory.
You need to identify an appropriate authentication mechanism that meets the following requirements:
– Supports security impersonation and delegation.
– Avoids passing user credentials as clear text.
Which authentication mechanism should you use?

You create an application by using Microsoft Visual Studio .NET 2008 and the .NET Framework 3.5.
The application exposes a Windows Communication Foundation (WCF) service that will be consumed by an ASP.NET application.
The WCF application and the ASP.NET application will be deployed on the same server.
You need to ensure that the WCF service meets the following requirements:
– The communication between the applications incurs minimum latency.
– The binding satisfies the ordered delivery constraint that is specified in the service implementation by using the DeliveryRequirements attribute.
Which binding object should you use?

You create an application by using Microsoft Visual Studio .NET 2008 and the .NET Framework 3.5.
You evaluate the design of a Microsoft SQL Server 2005 database that stores data for the application.
Several queries share a common SELECT statement.
The only difference between the SELECT statement in each query is a parameter that is used in the WHERE clause.
The SELECT statement is used in joins and subqueries.
You need to ensure that the database queries can be easily maintained.
What should you do?