Competency 2 Module

Front 1

If the boolean expression on the left side of an OrElse operator is true, the boolean expression on the right side of the Or operator will not be evaluated.

True

False

Back 1

True

Front 2

In the following statement that begins a For Next loop, what is the purpose of the Step clause?

For intX = 1 to 100 Step 5

It causes intX to be initialized to 5 when the loop begins.

It causes intX to be incremented by 5 each time the loop repeats.

It causes intX to be decremented by 5 each time the loop repeats.

It causes the loop to end when intX is equal to 5.

Back 2

It causes intX to be incremented by 5 each time the loop repeats.

Front 3

If the boolean expression A is True and B is False, the value of the logical expression A And B is ________.

False

1

0

True

Back 3

False

Front 4

A ToolTip is a ________ that allows the programmer to create a small popup message that displays when the user places the mouse over a control.

function

method

property

control

Back 4

Control

Front 5

Which of the following statements will display a message box with the text "line 1" on one line, and the text "line 2" on another line?

MessageBox.Show("line 1" & ControlChars.Crlf & "line 2")

MessageBox.Show("line 1" & "\n" & "line 2")

MessageBox.Show("line 1" "line 2")

MessageBox.Show("line 1" & ControlCharsCrLf & "line 2")

Back 5

MessageBox.Show("line 1" & ControlChars.Crlf & "line 2")

Front 6

What is the difference in the execution of the Do Until Loop (first example) and the Do Loop Until (second example)?

' First Example

sngPayAmount = 200

Do Until sngPayAmount > 150

sngPayAmount = sngPayAmount — 50Loop

'Second ExamplesngPayAmount = 200

Do sngPayAmount = sngPayAmount — 50

Loop Until sngPayAmount > 150

The first loop will execute one more time than the second loop.

The first loop will never be executed while the second loop will execute once.

Both loops are executed in an identical manner.

The first loop will never be executed while the second is an infinite loop.

Back 6

d. The first loop will never be executed while the second is an infinite loop.

Front 7

Because only one radio button in a group can be selected at any given time, they are said to be ________.

selectively unique

dependent

interdependent

mutually exclusive

Back 7

mutually exclusive

Front 8

If a form contains two radio buttons (rad1 & rad2) and two check boxes (chk1 & chk2) and all four of these controls reside in the same group box, which of the following expressions can never be true?

rad1.Checked=True and rad2.Checked=True

chk1.Checked=True and chk2.Checked=True

rad1.Checked=True and chk2.Checked=True

rad2.Checked=True and chk1.Checked=True

Back 8

rad1.Checked=True and rad2.Checked=True

Front 9

The ________ method adds a new entry as the last item in a ListBox.

Items.New

Items.Add

Items.Append

Items.Insert

Back 9

Items.Add

Front 10

The logical operators (And, Or, Xor, Not) combine two or more boolean expressions.

True

False

Back 10

True

Front 11

How many times will the message I love Visual Basic be displayed?

Dim intCount As Integer = 0

Do

lstOutPut.Items.Add("I love Visual Basic")

intCount += 1

Loop While intCount > 10

It will not be displayed at all.

It will display 2 times.

It will display 10 times.

It will display once.

Back 11

It will display once.

Front 12

What value is assigned to the String variable strSecond when the following code is executes?

Dim strFirst As String

Dim strSecond As String

strFirst = "1 2 Button My Shoe"

strSecond = strFirstName.ToUpper()

" BUTTON MY SHOE"

"1 2 BUTTON MY SHOE"

"1 2 bUTTON mY sHOE"

"12BUTTONMYSHOE"

Back 12

"1 2 BUTTON MY SHOE"

Front 13

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

True

False

Back 13

X

Front 14

Which of the following code segments assigns the string "Great Year" to a label named lblMessage when the value in the variable sngSales is either greater than 50,000, or equal to 50,000?

If sngSales < 50000 Then

lblMessage.Text = "Great Year"

End If

If sngSales >= 50000 Then

lblMessage.Text = "Great Year"

End If

If sngSales <= 50000 Then

lblMessage.Text = "Great Year"

End If

If sngSales > 50000 Then

lblMessage.Text = "Great Year"

End If

Back 14

If sngSales >= 50000 ThenlblMessage.Text = " Great Year"< /span>End If

Front 15

Which statement is not true regarding functions?

Visual Basic has many built-in functions such as CSng(txtInput.Text)

A function is a self contained set of statements that can receive input values.

A function can only return a single value.

The same function can return several data types including integer, string, or double

Front 16

The programmer cannot determine the content of a message box title bar.

True

False

Back 16

False

Front 17

Which of the following functions accepts a parameter named dblSales and returns the commission to the calling statement? Assume that the commission should equal the sales multiplied by the commission rate. Use the following table as a guide to the calculation of the commission rate.

SalesCommission Rateless than 2,00010%2,000 or more15%

Function Calc(ByVal dblSales As Double) As Double Dim dblRate As Double Select Case dblSales Case Is < 2000 dblRate = .1 Case Is >= 2000 dblRate = .15 End Select Return dblRate * dblSalesEnd FunctionFunction Calc(ByVal dblSales As Double, ByRef dblComm As Double) Dim dblRate As Double Select Case dblSales Case Is < 2000 dblRate = .1 Case Is >= 2000 dblRate = .15 End Select DblComm = dblRateEnd FunctionFunction Calc(ByVal dblSales As Double) As Double Dim dblRate, dblComm as Double Select Case dblSales Case Is < 2000 dblRate = .1 Case Is >= 2000 dblRate = .15 End Select dblCommission = dblRate * dblSalesEnd FunctionFunction Calc(ByVal dblSales As Double, ByRef dblComm as Double) Dim dblRate As Double Select Case dblSales Case Is < 2000 dblComm = .1 * dblRate Case Is >= 2000 dblComm = .15 * dblRate End SelectEnd Function

Front 18

Function WhatIsIt(ByVal intRepeat as Integer) as Integer

Dim intResult as Integer = 1

Dim intCount as Integer

For intCount = 1 to intRepeat

intResult = intResult * 2

Next intCount

Return intResult

End Function

MultiplyByTwo

SquareRootsOfTwo

PowersOfTwo

TwoPlusTwo

Back 18

X

Front 19

Which of the following displays a message box to the user?

MessageBox.Show

DisplayMessageBox

MessageBox.Display

MessageBox.Output

Back 19

MessageBox.Show

Front 20

The expression IsNumeric(13.75) returns the value ________.

14

13.75

1375

True

Back 20

True