You plan to create a Windows application by using the .NET Framework 3.5.
The Windows application must use a proprietary protocol to connect to a Windows Communication
Foundation (WCF) service. The application persists data to a Microsoft SQL Server 2008 database by
using the WCF service.
You need to analyze the feasibility of creating the application.
Which proof of concept should you create?

You maintain a Windows Forms application and an ASP.NET application.
The Windows Forms application has the following features:
The application impersonates the logged-on user.
The data is stored in a Microsoft SQL Server 2008 database.
The application grants user access to data by calling the IPrincipal.IsInRole method on the basis of user
roles.
The ASP.NET application uses forms-based authentication to authenticate users.
You need to share the login and user role information between the Windows Forms application and the
ASP.NET application.
What should you do?

You create a Windows application by using the .NET Framework 3.5.
You review the design for a Windows application that has the following features:
The data layer sends and receives data updates by using Microsoft Messaging Queue (MSMQ) 4.0.
Data is stored in a Microsoft SQL Server 2008 server database instance.
Data from a DataSet object is displayed in a DataGrid control.
The application is deployed to portable computers that can access the corporate network only when
plugged on to it. The data must be most securely stored when the computer is in offline mode.
You need to ensure that the portable computers can update data even when offline.
What should you do?

You maintain a Windows Forms application and an ASP.NET application.
The Windows Forms application has the following features:
The application impersonates the logged-on user.
The data is stored in a Microsoft SQL Server 2008 database.
The application grants user access to data by calling the IPrincipal.IsInRole method on the basis of user
roles.
The ASP.NET application uses forms-based authentication to authenticate users.
You need to share the login and user role information between the Windows Forms application and the
ASP.NET application.
What should you do?

You create a Windows application by using the .NET Framework 3.5.
The application will connect to a Microsoft SQL Server 2008 database on the network. You are creating
the data access layer for the application.
The database schema will change regularly.
You need to ensure that the schema changes can be applied with minimum possible development effort.
Which data access technology should you use?

You are creating a Windows application by using the .NET Framework 3.5.
You configure the deployment project of the application to deploy an assembly named MyClass.dll to the
global assembly cache (GAC).
You replace the existing version of the application with an updated version.
You discover that because of the presence of an old version of MyClass.dll assembly in the GAC, the
updated version does not function properly.
You need to ensure that when the application is uninstalled for replacement, the MyClass.dll assembly is
deleted from the GAC. What should you do?

You create a Windows application by using the .NET Framework 3.5.
The application will connect to a Microsoft SQL Server 2008 database on the network. You are creating
the data access layer for the application.
The database schema will change regularly.
You need to ensure that the schema changes can be applied with minimum possible development effort.
Which data access technology should you use?

You maintain a Windows Forms application and an ASP.NET application.
The Windows Forms application has the following features:
The application impersonates the logged-on user.
The data is stored in a Microsoft SQL Server 2008 database.
The application grants user access to data by calling the IPrincipal.IsInRole method on the basis of user
roles.
The ASP.NET application uses forms-based authentication to authenticate users.
You need to share the login and user role information between the Windows Forms application and the
ASP.NET application.
What should you do?

You create a Windows application by using the .NET Framework 3.5.
The application has a complex form that is used to capture information.
Users of the application enter data in the forms quickly by using tabs to navigate through the form controls.
They must be immediately notified when they enter invalid data in the form controls.
You need to notify the users without blocking the data entry process.
Which control should you use?

You are creating a Windows application by using the .NET Framework 3.5.
The application makes function calls to an unmanaged library to control the operation of a robot.
You create a class that consumes significant memory during function calls to the unmanaged library. You
discover that memory consumption increases over time.
You need to ensure that the application consistently consumes minimum memory.
What should you do?