Question 1

Explain what it means to access data sequentially from a sequential access file.

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Question 2

Data types created by the Structure statement are referred to as ____________________ data types.

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Question 3

Under what situations does a form's FormClosing event occur?

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Question 4

A(n) ____ is a group of related fields that contain all of the necessary data about a specific person, place, or thing.
A) record
B) table
C) column
D) entity

Accepted Answer

A record is a group of related fields that contain all of the necessary data about a specific person, place, or thing, representing a single unit of meaningful information.

Question 5

When using the ____________________ method, the next character written to a file will appear on the line immediately below the string.

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Question 6

Variables included in a structure are referred to as ____________________ variables.

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Question 7

Which of the following statements removes the first item from the booksList box?
A) booksListBox.Remove(0)
B) booksListBox.RemoveAt(1)
C) booksListBox.Items.RemoveAt(0)
D) booksListBox.Items.RemoveAt(1)

Accepted Answer

The statement "booksListBox.Items.RemoveAt(0)" removes the first item from the booksList box. Option A and B are incorrect as they either remove the wrong index (A) or the wrong item (B). Option D removes the second item in the list but not the first.

Question 8

Suppose a structure variable named manager contains a salary member variable. Write a statement that multiplies the contents of the salary member variable by 1.05 , and then assigns the result to the member variable.

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Question 9

Explain what a delimiter character is used for.

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Question 10

Variables declared using a structure are often referred to as ____________________ variables.

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Question 11

A(n) ____ is a single item of information about a person, place, or thing.
A) table
B) entity
C) field
D) attribute

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Question 12

You should use the ____________________ method to close an output sequential access file as soon as you are finished using it.

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Question 13

Write a statement to declare a class-level variable named salaried of a structure named Employee .

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Question 14

You can prevent the computer from closing a form by setting the Cancel property of the FormClosing procedure's ____ parameter to True .
A) form
B) e
C) load
D) start

Accepted Answer

The FormClosing event handler is passed an argument of type FormClosingEventArgs. This event is raised when the form is closing, either because the user pressed the close button on the form or because you invoked the Close method of the form. You can handle this event to cancel the form-closing operation by setting the FormClosingEventArgs.Cancel property to true. This can be achieved by setting the Cancel property of the FormClosingEventArgs parameter to True. Therefore, the best choice is B.

Question 15

When using the Exists method for determining whether a file exists, explain what happens if you do not include a folder path.

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Question 16

A form's FormClosing event can occur when the computer processes the ____ statement in the form's code.
A) My.Computer.Close()
B) MyComputer.Close()
C) Me.Close()
D) My.Close()

Accepted Answer

The Me.Close() statement in the form's code will trigger the FormClosing event. The other options are not valid statements and will result in errors if used in this context.

Question 17

Write a statement to declare a procedure-level variable named manager of a structure named Employee .

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Question 18

You can use the ____ method to write a specific number of space characters in a string.
A) Strings.Space
B) Strings.Write
C) Strings.Character
D) Strings.Add

Accepted Answer

The Strings.Space method can be used to write a specific number of space characters in a string by passing the number of spaces desired as an argument.

Question 19

Describe the advantage of passing a structure variable to a procedure.

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Question 20

Explain the difference between a field and a record and provide an example of each.

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Quiz 12: Structures and Sequential Files