Question 1

Which is the correct way to define a function named Square that receives an integer and returns an integer representing the square of the input value?

Accepted Answer

A)   Function Square(ByVal intNum as Integer)  As Integer Return intNum * intNumEnd Function
B)   Function Square(ByVal intNum as Integer)  Return intNum * intNumEnd Function
C)   Function Square(ByVal intNum as Integer)  As Double Return intNum * intNumEnd Function
D)   Function Square(ByVal intNum as Integer)  As Double Dim dblAns as DoubleDblAns = intNum * intNumReturn dblAnsEnd FunctionE) None of the above
F) A) and B)

Question 2

When a procedure finishes execution, __________.

Accepted Answer

A)   control returns to the point where the procedure was called and continues with the next statement
B)   the application terminates unless the procedure contains a Return statement
C)   control transfers to the next procedure found in the code
D)   the application waits for the user to trigger the next eventE) B) and C)
F) A) and C)

Question 3

Which one of the following declarations uses Pascal casing for the procedure name?

Accepted Answer

A)   Sub MyProcedure() End Sub
B)   Sub myprocedure() End Sub
C)   Sub my_procedure() End Sub
D)   Sub myProcedure() End SubE) A) and B)
F) None of the above

Question 4

What is incorrect about the following function?
 Function sum(ByVal intX As Integer, ByVal intY As Integer)  As Integer
Dim intAns As Integer
IntAns = intX + intY
End Function

Accepted Answer

A)   intAns should not be declared inside the Function.
B)   the as Integer at the end of the Function heading should be eliminated.
C)   the function does not return a value
D)   parameters intA and intB should be declared as ByRefE) All of the above
F) B) and C)

Question 5

What will be the value of dblSum after the button btnAdd is clicked, assuming that 25 is entered by the user into txtNum1, and 35 is entered into txtNum2?
 Private Sub btnAdd_Click(ByVal sender As System.Object, _
ByVal e As System.EventArgs)  Handles btnAdd.Click

Dim dblNum1, dblNum2, dblSum As Double
DblNum1 = CDbl(txtNum1.Text) 
DblNum2 = CDbl(txtNum2.Text) 
DblSum = Sum(dblNum1, dblNum2) 
LblSum.Text = dblSum.ToString()

End Sub

Function Sum(ByVal dblNum1 As Double, ByVal dblNum2 As Double)  as Double
Return dblNum1 + dblNum2
End Function

Accepted Answer

A)   60
B)   50
C)   0
D)   70E) B) and D)
F) All of the above

Question 6

Although you can omit the ByVal keyword in a parameter variable declaration, it is still a good idea to use it.

Accepted Answer

A) True 
 B)False

Question 7

If we were to call the MakeDouble and ChangeArg methods shown below, using the following statements, what value would be assigned to lblResult.Text?
Dim intValue As Integer = 20
ChangeArg(intValue) 
LblResult.Text = MakeDouble(intValue) .ToString()

Function MakeDouble (ByVal intArg As Integer)  As Integer
Return intArg * 2
End Function

Sub ChangeArg2(ByRef intArg As Integer) 
' Display the value of intArg.
LstOutput.Items.Add(" ") 
LstOutput.Items.Add("Inside the ChangeArg procedure, " &
"intArg is " & intArg.ToString() ) 
LstOutput.Items.Add("I will change the value of intArg.") 
' Assign 0 to intArg.
IntArg = 0
' Display the value of intArg.
LstOutput.Items.Add("intArg is now " & intArg.ToString() ) 
LstOutput.Items.Add(" ") 
End Sub

Accepted Answer

A)   0
B)   20
C)   40
D)   (cannot be determined) E) None of the above
F) C) and D)

Question 8

What is wrong with the following GetName procedure? 
Sub GetName(ByVal strName As String) 
StrName = InputBox("Enter your Name:") 
End Sub

Accepted Answer

A)   The procedure is missing a Return statement.
B)   GetName is a reserved word and cannot be used as a name of a procedure.
C)   strName will be modified, but all changes will be lost when the procedure ends.
D)   The syntax for the call to InputBox is incorrect.E) A) and D)
F) None of the above

Question 9

When debugging a program in break mode, the Step Into command causes the currently highlighted line of code to execute.

Accepted Answer

A) True 
 B)False

Question 10

Which of the following does not apply to procedures and functions?

Accepted Answer

A)   they help to break up a large body of code into smaller chunks
B)   they make it easier to maintain and modify code
C)   the execution time is significantly reduced by calling procedures and functions
D)   they permit the same sequence of code statements to be called from multiple placesE) None of the above
F) B) and C)

Question 11

Which statement is not true regarding functions?

Accepted Answer

A)   A function is a self-contained set of statements that can receive input values.
B)   Visual Basic has many built-in functions such as CSng(txtInput.Text) 
C)   A function can only return a single value.
D)   The same function can return several data types including integer, string, or doubleE) All of the above
F) C) and D)

Exam 6: Procedures and Functions

Which statement is not true regarding functions?

Correct Answer
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Correct Answer
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What is wrong with the following GetName procedure? Sub GetName(ByVal strName As String) StrName = InputBox("Enter your Name:") End Sub

Correct Answer
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Correct Answer
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Although you can omit the ByVal keyword in a parameter variable declaration, it is still a good idea to use it.

Correct Answer
verified

Which is the correct way to define a function named Square that receives an integer and returns an integer representing the square of the input value?

Correct Answer
verified

When debugging a program in break mode, the Step Into command causes the currently highlighted line of code to execute.

Correct Answer
verified

When a procedure finishes execution, __________.

Correct Answer
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Which of the following does not apply to procedures and functions?

Correct Answer
verified

Which one of the following declarations uses Pascal casing for the procedure name?

Correct Answer
verified

What is incorrect about the following function? Function sum(ByVal intX As Integer, ByVal intY As Integer) As Integer Dim intAns As Integer IntAns = intX + intY End Function

Correct Answer
verified

Exam 6: Procedures and Functions

Which statement is not true regarding functions?

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

What is wrong with the following GetName procedure? Sub GetName(ByVal strName As String) StrName = InputBox("Enter your Name:") End Sub

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Although you can omit the ByVal keyword in a parameter variable declaration, it is still a good idea to use it.

Correct AnswerverifiedShow Answer

Which is the correct way to define a function named Square that receives an integer and returns an integer representing the square of the input value?

Correct AnswerverifiedShow Answer

When debugging a program in break mode, the Step Into command causes the currently highlighted line of code to execute.

Correct AnswerverifiedShow Answer

When a procedure finishes execution, __________.

Correct AnswerverifiedShow Answer

Which of the following does not apply to procedures and functions?

Correct AnswerverifiedShow Answer

Which one of the following declarations uses Pascal casing for the procedure name?

Correct AnswerverifiedShow Answer

What is incorrect about the following function? Function sum(ByVal intX As Integer, ByVal intY As Integer) As Integer Dim intAns As Integer IntAns = intX + intY End Function

Correct AnswerverifiedShow Answer

Correct Answer
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Correct Answer
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Correct Answer
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