A Windows Forms application contains the following code segment.
string SQL =
@"SELECT OrderID, ProductID, UnitPrice, Quantity FROM [Order Details]";
SqlDataAdapter da = new SqlDataAdapter(SQL, connStr); Data Table dt = new Data Table();
da.Fill(dt);

You need to add a new column to the data table named ItemSubtotal. The ItemSubtotal column must contains the named of the UnitPrice column multipled by the value of the Quantity column. Which code segment should you use?

You are working with a Windows Forms application that uses the Application.Settings features…
You need to perform certain processing actions when user settings are changed at run time. Which two events should you handle to achieve this goal? (Each correct answer presents part of the solution. Choose two.)

You are working as an application developer at Domain.com. The Domain.com network consists of a single Active Directory domain named Domain.com. Domain.com uses Visual Studio 2005 as an application platform. Domain.com consists of a Development department. You as the developer of Domain.com use a client computer named Certkiller -WS023 as developing collateral. You are using the Semaphore class to synchronize access to a resource pool. During an inspection you find out that an exception of type UnauthorizedAccessException is thrown when you call the OpenExisting method of the Semaphore class, which is only thrown for one user.
What should you do to stop the exception from being thrown?

You are busy creating an instance of Semaphore by means of calling its constructor. While the Semaphore instance was created, you specify four resources from a resource pool and reserve the three resources. You want to call the Release method of the Semaphore instance to allocate four available resources from the resource pool. Which of the following numbers should you pass to the Release method?

You are using the Semaphore class to synchronize access to a resource pool. During an inspection you find out that an exception of type UnauthorizedAccessException is thrown when you call the OpenExisting method of the Semaphore class, which is only thrown for one user.
What should you do to stop the exception from being thrown?

You are busy creating a component that allows the users in the Finance department to print daily reports. You want the component to grant permission to access all the printers on the client computers of the users. What should you do to programmatically specify security to stop a full stack walk from being performed when the component prints the report?

You are busy adding a WebBrowser control named, Certkiller browser to a form in a Microsoft Windows Form application. To control the navigation of the documents, you add Button controls and a TextBox control to the form, just incase a HTML document needs to e programmatically parse through the content. Which code segment should be used to create an event handler?

You are creating an application named Certkiller App1. You use ClickOnce deployment to distribute Certkiller App1.exe and multiple Assemblies. Some users require only some of the functionality in Certkiller App1.
You need to limit the size of the initial download of the application. You also need to ensure that users can download the assemblies on demand. Which three actions should you perform? (Each correct answer presents part of the solution. Choose three.)