Deck 5: More on the Selection Structure

Question 1

Reversing the primary and secondary logical decisions in a program's code has no impact on the program's execution.

Answer 1

False

Question 2

The primary decision is always made by the outer selection structure.

Answer 2

True

Question 3

The TypeOf ... Is operator is used to compare two strings of data in a selection structure.

Answer 3

False

Question 4

The Is operator is used to evaluate and determine if two object references refer to the same object.

Question 5

The case expression Case Is <= 15 will check and execute for all values less or equal to 15.

Question 6

In a case selection structure the expression Case Is 10 To 5 is an incorrectly formed case statement.

Question 7

When several alternatives exist for processing data, it is usually simpler and clearer to use a Select Case structure rather than a If/ElseIf/Else structure.

Question 8

A nested selection structure is used when more than one decision needs to be made prior to executing instructions.

Question 9

When the computer finds a match in the expressionlist in a Select Case logic structure, all of the instructions are executed up to the next Case clause, a Case Else, or an End Select.

Question 10

Every Select Case logic structure must be terminated with End Case.

Question 11

A set of step-by-step instructions to accomplish a task is referred to as an algorithm.

Question 12

In a Case expression, when only one limiting value is known the programmer should use Is keyword instead of the To keyword when creating the expression.

Question 13

A nested selection structure can only be coded using the true path of a selection structure.

Question 14

An unnecessary selection structure within a nested selection structure will make the program inefficient.

Question 15

Desk-checking is the process of using sample data to walk through each of the steps in the algorithm manually to verify that it is a correct solution to a problem.

Question 16

When a user selects a second checkbox in a group, previously selected checkbox items are deselected.

Question 17

When you use a range test in a Case clause, the value on the left side of the To must always be lower than the value on the right side.

Question 18

A nested selection structure using If/ElseIf/Else logic structures needs only one End If terminus to mark the end of the selection structure.

Question 19

An inner selection structure contained within an outer selection structure is referred to as a complex selection structure.

Question 20

A common mistake when writing selection structures is to use a logical operator in place of a nested selection structure.

Question 21

When the programmer wants to limit the user to one choice during input of mutually exclusive options the ____ control should be used.

A) TextBox
B) CheckBox
C) RadioButton
D) Label

Question 22

When a nested selection structure is encountered, the ____ decision is always made by the outer selection structure.

A) primary
B) secondary
C) binary
D) linear

Question 23

If only one bound is known for a range when constructing a Case expression, it is best to use the ____ keyword in identifying the range.

A) From
B) Is
C) To
D) Range

Question 24

The Visual Basic .NET Get statement causes the execution of a user-defined Sub procedure.

Question 25

The case executed when none of the preceding cases are true is the Case ____.

A) Otherwise
B) Else
C) Next
D) Last

Question 26

When a nested selection structure is encountered, the ____ decision is always made by the inner selection structure.

A) primary
B) secondary
C) binary
D) linear

Question 27

The Select Case selection structure must be terminated using ____.

A) End
B) End Case
C) End Select
D) Select End

Question 28

The pattern-matching character ? is used with the Like operator to match a single character.

Question 29

The selection structure operator ____ determines if two object references refer to the same object.

A) Is
B) TypeOf...Is
C) Like
D) To

Question 30

The pattern-matching character ____ is used with the Like operator to match a single digit.

A) *
B) #
C) ?
D) &

Question 31

The maximum number of radio buttons that can be selected from a group is ____.

A) 1
B) 3
C) 5
D) 7

Question 32

The minimum number of radio buttons in a group is one.

Question 33

If both the upper and lower bounds are known for a range when constructing a Case expression, it is best to use the ____ keyword in identifying the range.

A) From
B) Is
C) To
D) Range

Question 34

The maximum number of selected items on a radio box group with five choices is four items selected.

Question 35

The recommended maximum number of radio buttons placed in a group is ____.

A) 1
B) 3
C) 5
D) 7

Question 36

The pattern-matching character ____ is used with the Like operator to match zero or more characters.

A) *
B) #
C) ?
D) &

Question 37

The selection structure operator ____ determines whether an object is a specified type.

A) Is
B) TypeOf ...Is
C) Like
D) To

Question 38

A meat packer grades meat "P" for Prime, "C" for Choice, "S" for Standard, and "G" for Good. Which of the following Case expressions is incorrect?

A) Case "P", "C"
B) Case "S"
C) Case "CGSP"
D) Case Else

Question 39

The default radio button is designated by setting the Checked property to a value of True.

Question 40

When a selection structure's true path or false path contains another selection structure, the inner selection structure is referred to as a ____ selection structure.

A) complex
B) primary
C) nested
D) combined

Question 41

After creating a Random object, you can generate random integers using the ____ method.

A) Random.Call
B) Random.Number
C) Random.Generate
D) Random.Next

Question 42

An online book seller uses the following schedule to determine the shipping costs: Category Books Ordered Basic cost Plus per book I 1-3 $5 .25 II 4-7 $7 .20 III 8-11 $9 .15 IV 12 or more $11 .10 What is a correct case expression for a category II book order based upon Books Ordered?

A) Case Is < 7
B) Case 4 To 7
C) Case Is 4 To 7
D) Case Between 4 and 7

Question 43

The ____ operator is used to determine if an object is a specified type.

A) ClassOf
B) TypeOf...Is
C) ObjectOf
D) Is..A

Question 44

The minimum number of options for a check box group is ____.

A) 1
B) 2
C) 4
D) 7

Question 45

Which of the following would be an appropriate use of a check box control?

A) Marital Status (Married, Single)
B) Gender (Female, Male)
C) Full Time - Part Time
D) Insurance Benefits (Health, Dental, Vision)

Question 46

When the programmer does not want to limit the user to one choice during input of independent and nonexclusive options the ____ control should be used.

A) TextBox
B) CheckBox
C) RadioButton
D) Label

Question 47

Instructions entered in a form's ____ event procedure are processed when the application is started and the form is loaded into memory.

A) Load
B) Start
C) Begin
D) Call

Question 48

Which of these can be used to determine if a student had earned a passing grade of an "A", "B", or "C", assuming that the grade is in the string variable grade?

A) grade Like "["A" or "B" or "C"]"
B) grade Like "['A' or 'B' or 'C']"
C) grade Like "[ABC]"
D) grade Like "A or B or C"

Question 49

Which of these can be used to determine if a student had earned a grade of an "D" or "F", assuming that a grade of "A", "B", "C", "D" or "F" is in the string variable grade?

A) grade Like "["D" or "F"]"
B) grade Like "['F' or 'D']"
C) grade Like "[!ABC]"
D) grade Like "!A or !B or !C"

Question 50

In a Case selection structure, each expression in an expression list is separated by a ____.

A) semicolon (;)
B) colon (:)
C) period (.)
D) comma (,)