VB.Net Practice Exam: Quiz!

1. The Properties window is used to set the properties for the objects on your form.

True

False

Page: 12 Objective: 6

Explanation

Page: 12 Objective: 6

2. Visual Basic.NET is an object-oriented programming language.

True

False

Page: 3 Objective: 2

Explanation

Page: 3 Objective: 2

3. After you have added a label to a form you can change the words that are displayed inside the button by changing the Text property.

True

False

Page: 24 Objective: 8

Explanation

Page: 24 Objective: 8

4. A .vb file holds the definition of a form, its controls, and code procedures.

True

False

Page: 7 Objective: 5

Explanation

Page: 7 Objective: 5

5. With Visual Basic you can write computer programs that run in the Microsoft Windows environment.

True

False

Page: 2 Objective: 1

Explanation

Page: 2 Objective: 1

6. Which of the following is not a valid data type?

Integer

Real

Decimal

String

Answer: B Page: 97 Objective: 2

Explanation

Answer: B Page: 97 Objective: 2

7. The property used to display information in a TextBox is _______.

Caption

Name

Text

Appearance

Page: 63 Objective: 1

Explanation

Page: 63 Objective: 1

8. Writing a program in Visual Basic is so easy that it is not necessary to do any planning.

True

False

Page: 6 Objective: 4

Explanation

Page: 6 Objective: 4

9. The data type that is used for decimal fractions is _______.

Decimal

Short

Integer

Fraction

Answer: A Page: 97 Objective: 2

Explanation

Answer: A Page: 97 Objective: 2

10. You are in run time when you design the user interface.

True

False

Page: 13 Objective: 7

Explanation

Page: 13 Objective: 7

11. The ______ symbol is used for concatenation.

& (ampersand)

@ (at)

' (apostrophe)

_ (underscore)

Page: 80 Objective: 8

Explanation

Page: 80 Objective: 8

12. What will be the value of answerInteger after execution of the following line of code? Assume that numberAInteger = 6, numberBInteger = 4, numberCInteger = 2 answerInteger = (numberAInteger + numberBInteger) * (numberAInteger / numberCInteger)

6

30

27

None of the above

Answer: B Page: 109 Objective: 7

Explanation

Answer: B Page: 109 Objective: 7

13. The .resx file is a text file that defines all resources used by the form including any graphics that are displayed on the form.

True

False

Page: 7 Objective: 5

Explanation

Page: 7 Objective: 5

14. As a program runs, the insertion point can be moved from control to control. In order to reset the focus back in a text box named nameTextBox you should use the code _______.

TxtName.Focus()

TxtName = Focus()

TxtName = Top()

TxtName.First()

Page: 79 Objective: 4

Explanation

Page: 79 Objective: 4

15. If the programmer does not write code for a button control, Visual Basic automatically provides code in the Click procedure that will close the form when the user clicks the button.

True

False

Page: 28 Objective: 8

Explanation

Page: 28 Objective: 8

16. Which of the following is a valid statement that can be used to declare a local variable that will store whole numbers?

Dim indexWhole as Whole

Dim strIndex as String

Dim Integer as Index

Dim intIndex as Integer

Answer: D Page: 102 Objective: 4

Explanation

Answer: D Page: 102 Objective: 4

17. You can use the Properties window to change the properties of controls during run time.

True

False

Page: 12 Objective: 7

Explanation

Page: 12 Objective: 7

18. If you would like to change the background color on a form, you must change the form's _____________ property.

ForeColor

BackColor

Appearance

Background

Page: 79 Objective: 6

Explanation

Page: 79 Objective: 6

19. Which of the following is not a valid rule for naming identifiers?

Names may contain underscores, but not good coding standards

Names may contain letters

Names may contain digits

Names may contain spaces

Answer: D Page: 98 Objective: 3

Explanation

Answer: D Page: 98 Objective: 3

20. Which of the following does not follow the conventions for naming identifiers?

DecUnitsEnrolled

StrZipCode

Dec.amount.due

STRCOUNTRY

Answer: C Page: 98 Objective: 3

Explanation

Answer: C Page: 98 Objective: 3

21. Integer.Parse is used to _______.

Convert data in a textbox to a numeric value with no decimal places

Properly align decimal positions in a numeric value

Add a dollar sign ($) to improve the way the output looks

Convert data in a textbox to a numeric value with 2 decimal places

Answer: A Page: 106 Objective: 6

Explanation

Answer: A Page: 106 Objective: 6

22. Which of the following is not an object?

Form

GroupBox

RadioButton

All of the above are objects

Page: 62 Objective: 1

Explanation

Page: 62 Objective: 1

23. When you declare a variable or a named constant, Visual Basic reserves an area of memory and assigns it a name called a(n) _______.

Identifier

Identity

Declaration

Dimension

Answer: A Page: 97 Objective: 1

Explanation

Answer: A Page: 97 Objective: 1

24. You write Visual Basic code statements during design time.

True

False

Page: 13 Objective: 7

Explanation

Page: 13 Objective: 7

25. A _______ variable is declared inside a procedure.

Namespace

Module-level

Local

Block

Answer: C Page: 104 Objective: 5

Explanation

Answer: C Page: 104 Objective: 5

26. If a procedure contains a Dim statement and strName is assigned as the identifier, strName can be used _______.

Anywhere in the project

Only in the procedure where the Dim statement is shown

Anywhere in the project if the variable name is changed to STR_NAME

Only once in the procedure

Answer: B Page: 104 Objective: 5

Explanation

Answer: B Page: 104 Objective: 5

27. Which of the following is not a valid method for parsing?

Integer.Parse

Decimal.Parse

Parse.String

All of the above are valid

Answer: C Page: 107 Objective: 6

Explanation

Answer: C Page: 107 Objective: 6

28. Variables declared within a button's click-event are _____ variables.

Local

Module-level

Namespace

Private

Answer: A Page: 104 Objective: 5

Explanation

Answer: A Page: 104 Objective: 5

29. If a project runs without a syntax error, you can be certain that the code has performed the project's task correctly.

True

False

Page: 43 Objective: 9

Explanation

Page: 43 Objective: 9

30. When creating a project in Visual Basic you should always begin by writing the Basic code.

True

False

Page: 6 Objective: 4

Explanation

Page: 6 Objective: 4

31. Using the order of precedence and the formula below, what is answerInteger if: numberOneInteger=2, numberTwoInteger=12, numberThreeInteger=20, and numberFourInteger=6 answerInteger= numberOneInteger * (numberTwoInteger + numberThreeInteger) - numberFourInteger / numberOneInteger

19

41

61

None of the above

Answer: C Page: 109 Objective: 7

Explanation

Answer: C Page: 109 Objective: 7

32. The Solution Explorer window is where you design a form that makes up your user interface.

True

False

Page: 12 Objective: 6

Explanation

Page: 12 Objective: 6

33. In Form1.Text, the word Text is referring to a method.

True

False

Page: 4 Objective: 3

Explanation

Page: 4 Objective: 3

34. Setting the TabIndex of a control to 0 (zero) will _______.

Cause the control to appear to the right of the other controls

Make the control Visible

Align the control to the left of the other controls

Set the focus on this control when the program begins running

Page: 73 Objective: 4

Explanation

Page: 73 Objective: 4

35. Create keyboard access on an object by ______________ in the Text property.

Using ampersand (&)

Using at (@)

Using underscore ( _)

Capitalizing the first letter of the word

Page: 72 Objective: 4

Explanation

Page: 72 Objective: 4

36. Which of the following is a valid statement that can be used to declare a local variable that will store fractions?

Dim indexFraction As Fraction

Dim strIndex As String

Dim decIndex As Decimal

Dim intIndex As Integer

Answer: C Page: 102 Objective: 4

Explanation

Answer: C Page: 102 Objective: 4

37. Where should the statement: Dim counterInteger As Integer, appear if you plan to use counterInteger in only one event procedure?

The Declarations section of the form

The Form_Load procedure

The event procedure where intCounter will be used

The Namespace Constants file

Answer: C Page: 103 Objective: 5

Explanation

Answer: C Page: 103 Objective: 5

38. Which of the following has the highest order of precedence in arithmetic expressions?

Multiplication and division

Addition and subtraction

Exponentiation

Operators are not significant; all calculations are evaluated from left to right

Answer: C Page: 109 Objective: 7

Explanation

Answer: C Page: 109 Objective: 7

39. Which of the following is NOT a rule for naming identifiers?

Identifiers for constants should use an underscore between words

Identifiers should use periods to separate words

Identifiers should list the data type at the end of the name

Identifiers cannot contain embedded blanks

Answer: B Page: 98 Objective: 3

Explanation

Answer: B Page: 98 Objective: 3

40. What will be the value of answerInteger after execution of these statements? Const numberAInteger as Integer = 6 Const numberBInteger as Integer = Const numberCInteger as Integer = 2 answerInteger = numberAInteger + numberBInteger * numberCInteger

6

14

20

48

Answer: B Page: 109 Objective: 7

Explanation

Answer: B Page: 109 Objective: 7

41. Which of the following statements will clear the contents of a text box named messageTextBox?

TxtMessage.Text = ""

TxtMessage.Clear()

TxtMessage.Text = String.Empty

All of the answers are correct

Page: 78 Objective: 5

Explanation

Page: 78 Objective: 5

42. Declaration statements _______.

Are only used for variables and are not needed for constants

Are only allowed in the Declarations section of a form

Give variables and constants names, and specify the type of data they will hold

Both answers B and C are correct.

Answer: C Page: 97 Objective: 1

Explanation

Answer: C Page: 97 Objective: 1

43. Where should the statement: Const STR_ACCOUNT_NUMBER As String = "A45", appear if you plan to use STR_ACCOUNT_NUMBER in more than one procedure?

The Declarations section of the form

The Form_Load procedure

The event procedure where STR_ACCOUNT_NUMBER will be used

The Namespace Constants file

Answer: A Page: 104 Objective: 5

Explanation

Answer: A Page: 104 Objective: 5

44. In order to control the number of decimals that will appear when a number is displayed, you can use _______.

A conversion function

A string variable

A constant

The format specifier codes

Answer: D Page: 116 Objective: 10

Explanation

Answer: D Page: 116 Objective: 10

45. You can break a long line of code into multiple lines by ________ and then continuing writing code on the next line.

Pressing the Enter key at the end of the line

Adding a blank space and a plus sign ( + ) at the end of the line

Adding a blank space and an ampersand ( & ) at the end of the line

Adding a blank space and an underscore ( _ ) at the end of the line

Page: 81 Objective: 8

Explanation

Page: 81 Objective: 8

46. If Option Strict is turned off and a declaration statement does not specify a data type, it will default to _______.

Boolean

String

Object

Variable

Answer: C Page: 101 Objective: 4

Explanation

Answer: C Page: 101 Objective: 4

47. A variable that is declared in the Declarations section of a form is a(n) _______.

Module-level variable

Local variable

Block variable

General variable

Answer: A Page: 104 Objective: 5

Explanation

Answer: A Page: 104 Objective: 5

48. What will be the value of totalInteger after execution of this statement? Assume that valueInteger = 2. totalInteger= ((valueInteger + 2) * (valueInteger + 4)) / valueInteger + 1

13

8

12

None of the above

Answer: A Page: 109 Objective: 7

Explanation

Answer: A Page: 109 Objective: 7

49. MessageBox.Show("Hello","Goodbye") will display _______.

"Hello" in the message box titlebar and "Goodbye" in the body of the message box

"Goodbye" in the body of the message box; "Hello" is the name of the message box

"Goodbye" in the message box titlebar and "Hello" in the body of the message box

None of the above

Answer: C Page: 126 Objective: 12

Explanation

Answer: C Page: 126 Objective: 12

50. The length of identifiers is limited to _______.

1 to 8 characters

1 to 256 characters

1 to 4,000 characters

1 to 16,383 characters

Answer: D Page: 98 Objective: 3

Explanation

Answer: D Page: 98 Objective: 3

51. Intrinsic constants are _______.

Declared using the keyword Const

Declared using the keyword Dim

Placed in the Declarations section of a form

Built into Visual Studio

Answer: D Page: 101 Objective: 4

Explanation

Answer: D Page: 101 Objective: 4

52. What statement should be used to declare a module-level variable?

Dim

Const

Private

Public

Answer: C Page: 104 Objective: 5

Explanation

Answer: C Page: 104 Objective: 5

53. The reserved Visual Basic word, Dim, is short for dimension, which means _______.

Declaration

Size

Storage location

Identifier

Answer: B Page: 102 Objective: 4

Explanation

Answer: B Page: 102 Objective: 4

54. Which of the following is not a rule for naming identifiers for constants?

Include the data type at the end of the identifier

Everything in the identifier's name should be capitalized except the data type

Identifiers for constants should begin with a prefix of Const

Identifiers for constants should use an underscore between words

Answer: C Page: 99 Objective: 3

Explanation

Answer: C Page: 99 Objective: 3

55. The Visual Basic statement that requires all variables to be declared is _______.

Dim

Option Strict On

Option Explicit

Declarations

Answer: C Page: 112 Objective: 8

Explanation

Answer: C Page: 112 Objective: 8

56. You can vertically align a group of controls on your form by first selecting all of the controls to be aligned, and then _______.

Setting their X property to the same value

Selecting Align from the Format menu and then choosing Lefts.

Selecting "Make Same Size" from the Layout toolbar

Setting their Height property to the same value

Page: 70 Objective: 3

Explanation

Page: 70 Objective: 3