MCITP Self-Paced Training Kit (Exam 70-442): Designing and Optimizing Data Access by Using Microsoft SQL Server(TM) 2005 (Self-Paced Training Kits)

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QUESTION 1:
You create a Windows Form named Certkiller Form. The form enables users to
maintain database records in a table named Certkiller .
You need to add several pairs of controls to Certkiller Form. You must fulfill the
following requirements:
1. Each pair of controls must represent one column in the Certkiller table.
2. Each pair must consist of a TextBox control and a Label control.
3. The LostFocus event of each TextBox control must call a procedure named
UpdateDatabase.
4. Additional forms similar to Certkiller Form must be created for other tables in the
database.
5. Application performance must be optimized.
6. The amount of necessary code must be minimized.
What should you do?
A. Create and select a TextBox control and a Label control.
Write the appropriate code in the LostFocus event of the TextBox control.
Repeatedly copy and paste the controls into Certkiller Form until every column in the
Certkiller table has a pair of controls.
Repeat this process for the other forms.
B. Add a TextBox control and a Label controls to Certkiller Form.
Write the appropriate code in the LostFocus event of the TextBox control.
Create a control array form the TextBox control and the Label control.
At run time, add additional pairs of controls to the control array until every column in the
Certkiller table has a pair of controls.
Repeat this process for the other forms.
C. Create a new user control that includes a TextBox control and a Label control.
Write the appropriate code in the LostFocus event of the TextBox control.
For each column in the Certkiller table, add one instance of the user control to the
Certkiller Form.
Repeat this process for the other forms.
D. Create a new ActiveX control that includes a TextBox control and a Label control.
For each column in the Certkiller table, add one instance of the ActiveX control to
Certkiller Form.
Repeat this process for the other forms.
Answer: C
Explanation: We combine multiple Windows Form controls into a single control,
called user control. This is the most efficient solution to reuse functionality in this
scenario.
Note: Sometimes, a single control does not contain all of the functionality you need. For
instance, you might want a control that you can bind to a data source to display a first
name, last name, and phone number, each in a separate TextBox. Although it is possible

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to implement this logic on the form itself, it might be more efficient to create a single
control that contains multiple text boxes, especially if this configuration is needed in
many different applications. Controls that contain multiple Windows Forms controls
bound together as a single unit are called user controls.
Reference: 70-306/70-316 Training kit, Inheriting from UserControl, Page 345
Incorrect Answers
A: Only the controls, not the code of the control will be copied.
B: This is not the best solution. With a user control we could avoid writing code that are
executed at run time.
D: ActiveX controls should be avoided in Visual Studio .NET. They are less efficient.
QUESTION 2:
You use Visual Studio .NET to create a Windows-based application. The application
captures screen shots of a small portion of the visible screen.
You create a form named Certkiller CameraForm. You set the
Certkiller CameraForm.BackColor property to Blue. You create a button on the
form to enable users to take a screen shot.
Now, you need to create a transparent portion of Certkiller CameraForm to frame a
small portion of the screen. Your application will capture an image of the screen
inside the transparent area. The resulting appearance of CertK i ngCameraForm is
shown in the exhibit:
You add a Panel control to Certkiller CameraForm and name it transparentPanel.
You must ensure that any underlying applications will be visible within the panel.
Which two actions should you take? (Each correct answer presents part of the

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solution. Choose two.)
A. Set transparentPanel.BackColor to Red.
B. Set transparentPanel.BackColor to Blue.
C. Set transparentPanel.BackgroundImage to None.
D. Set transparentPanel.Visible to False.
E. Set Certkiller CameraForm.Opacity to 0%.
F. Set Certkiller CameraForm.TransparencyKey to Red.
G. Set Certkiller CameraForm.TransparencyKey to Blue.
Answer: A, F
Explanation:
A: We set the Background color of the Panel to Red.
F: We then the transparency color of the Form to Red as well.
This will make only the Panel transparent, since the background color of the form is
Blue.
QUESTION 3:
You use Visual Studio .NET to create a Windows-based application. The application
includes a form named Certkiller Form.
Certkiller Form contains 15 controls that enable users to set basic configuration
options for the application.
You design these controls to dynamically adjust when users resize Certkiller Form.
The controls automatically update their size and position on the form as the form is
resized. The initial size of the form should be 650 x 700 pixels.
If ConfigurationForm is resized to be smaller than 500 x 600 pixels, the controls will
not be displayed correctly. You must ensure that users cannot resize
ConfigurationForm to be smaller than 500 x 600 pixels.
Which two actions should you take to configure Certkiller Form? (Each correct
answer presents part of the solution. Choose two)
A. Set the MinimumSize property to “500,600″.
B. Set the MinimumSize property to “650,700″.
C. Set the MinimizeBox property to True.
D. Set the MaximumSize property to “500,600″.
E. Set the MaximumSize property to “650,700″.
F. Set the MaximumBox property to True.
G. Set the Size property to “500,600″.
H. Set the Size property to “650,700″.
Answer: A, H
Explanation:
A: The Form.MinimumSize Property gets or sets the minimum size the form can be

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resized to. It should be set to “500, 600″.
H: We use the size property to set the initial size of the form. The initial size should be
set to “650, 700″.
Reference:
.NET Framework Class Library, Form.MinimumSize Property [C#]
.NET Framework Class Library, Form.Size Property [C#]
Incorrect Answers
B: The initial size is 650 x 750. The minimal size should be set to “500,600″.
C: The minimize button will be displayed, but it will not affect the size of the form.
D, E: There is no requirement to define a maximum size of the form.
F: The maximize button will be displayed, but it will not affect the size of the form.
G: The initial size should be 650 x 700, not 500 x 600.
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