You are busy developing a Microsoft Windows Form application. This Windows Forms application will allow electrical engineers to visually design circuit boards. The users in the Development department connect to Certkiller -WS005 and download their respective designed circuit board for the hardware they developed. Which of the following code segments should you use to allow users to download all designed circuit boards in a background thread with Common Language Runtime to manage the thread?

You are creating multiple threads in you application that will execute the same method. You need to synchronize access to a block of code within the method so that no two threads execute the block at the same time. What should you do?

You have received instructions to call a stored procedure that return images from a Microsoft SQL Server 2005 database.
You want to use the SqlDataReader class to read the returned images. To ensure that each image is returned as a Stream instance that can be read on demand, what should you do?

One of the assistant application developers named Rory Allen were asked to execute two SQL commands which can update the data in separate Microsoft SQL Server 2005 databases. When ever the second command fails, the first command should be rolled back. What should Rory Allen do?

You are developing a Web service for new updates to query automatically, by use of a Microsoft Windows Forms application. You then add a NotifyIcon component named Certkiller notify to the application’s main form. Whenever a new update is available you want the following balloon tip to display as seen in the exhibit for 5 seconds. Which segment should you use to write a code to download the updates if the users click the balloon tip?

You are busy to develop a Microsoft Windows Forms exam delivery application. This is going to be used to access the content of the exam via the Internet. A WebBrowser named testbrowser is added to the control to a form named Certkiller Form, which is define as follows:

[PermissionSet[SecurityAction.Demand, Name="FullTrust"]] [System.Runtime.InteropServices.ComVisible[true]]
public Certkiller Form : Form
{
public Certkiller Form[]
{
InitializeComponent[];
}
public void Expire[]
{
}
}
The JavaScript-based timer that is used by the Web site for the exam has a function to inform the exam delivery application when the time has expired for the exam, which is the following:
window.external.Expire[];
What should you do to make sure that the Expire method of Certkiller Form is called when the JavaScrip function is carry out?

You are creating a multiple-document interface (MDI) Windows Forms application that contains an MDI parent form and an MDI child form. You add a MenuStrip control to the parent form and a MenuStrip control to the child form. You add a top-level menu item labeled File to each menu. You then add different submenu items to each menu. When a child window is visible, the application should display a single top-level File menu that contains the combined set of submenu items. You need to set form properties so that the menus combine correctly. What should you do?

You are busy creating a class that derives from Installer. The class that you created is used by Microsoft Windows Forms application to install a custom component which uses an existing Microsoft Access database.
Which exception type should you use if the database does not exist at installation time and you need to throw an exception and have the installation rolled back?

You are creating a Windows Forms application. You want the installer to display an HTML document that contains important information after users install your application. You need to configure your application to display the HTML document. What should you do?

You are modifying an existing installation package for your application. Your application requires Microsoft Windows Server 2003 and will not run on Microsoft Windows 2000 Server.
You add the following condition to the primary output of your installer.
VersionNT >= 502
Users who previously attempted to install your application on Windows 2000 Server report that they still cannot install your application after than upgrade to Windows Server 2003.
You need to ensure that users who upgrade the operating system on their servers to meet your launch condition can successfully ..install your application.
What should you do?