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Exam 4: Making Decisions

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Question 21

Multiple Choice

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If the Boolean expression A is True and B is False, the value of the logical expression A Or B is __________.

A) True
B) False
C) 1
D) 0

E) B) and C)
F) A) and D)

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Question 22

Multiple Choice

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Which statement assigns the string strAddress to label lblAddress while removing only trailing spaces?

A) lblAddress.Text = TrimStart(strAddress)
B) strAddress.TrimEnd = lblAddress.Text
C) lblAddress.Text = strAddress.Trim()
D) lblAddress.Text = strAddress.TrimEnd()

E) B) and D)
F) A) and D)

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Question 23

Multiple Choice

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

To convert a copy of a string to all uppercase letters, use the method of the String object.

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?

What value will be assigned to intIndex when the following statements execute? Dim strTarget As String = "asdsakfljfdgasldfjdl" Dim intIndex = strTarget.IndexOf("as", 1)

A flag is a ______variable that signals when some condition exists in the program.

What value will be assigned to intIndex when the following statements execute? Dim strTarget As String = "asdsakfljfdgasldfjdl" Dim intIndex as Integer = strTarget.IndexOf("GAS")

It is not possible to use a relational operator and math operators in the same expression.

What is assigned to lblMessage.Text when the following code segment executes? Dim strName1 As String = "Jim" Dim strName2 As String = "John" If strName1 > strName2 Then LblMessage.Text = "Jim is greater" Else LblMessage.Text = "John is greater" End If

What value will be assigned to strGrade when intScore equals 90? If intScore > 60 Then StrGrade = "D" End If If intScore > 70 Then StrGrade = "C" End If If intScore > 80 Then StrGrade = "B" End If If intScore > 90 Then StrGrade = "A" End If

The expression IsNumeric(13.75) returns the value __________.

What value is assigned to the variable strSnip when the following statements execute? Dim strSnip As String Dim strFullString As String = "Washington" StrSnip = strFullString.Substring(7)

Which function accepts a string as its argument and returns True if the string contains only numeric digits?

Which change would correct the syntax error in the following code? 1: If intScore < 80 Then 2: strGrade = "C" 3: Else intScore > 80 Then 4: strGrade = "A" 5: End If

What value is assigned to decTaxes by the following program segment, assuming that the user enters 50000 into the textbox txtSalary.Text? Dim decSalary, decTaxes As Decimal DecSalary = CDec (txtSalary.Text) If (decSalary > 50000) Then DecTaxes = .40 * decSalary ElseIf (decSalary > 40000) Then DecTaxes = .30 * decSalary ElseIf (decSalary > 30000) Then DecTaxes = .20 * decSalary Else DecTaxes = .10 * decSalary End If

What value will be assigned to intIndex when the following statements execute? Dim strTarget As String = "asdsakfljfdgasldfjdl" Dim intIndex = strTarget.IndexOf("as", 1, 10)

Identify the correct Select Case statement that checks the value of a variable intMyNum and assigns a value using the following guidelines: value 1 or 7 or 15 add 100 to the variable Value 2 or 9 or 21 add 150 to the variable Value 3 or 6 or 13 add 200 to the variable None of the above set txtOutput.Text to "Cannot find it"

The _keyword is required to use relational operators in a Case statement.