Question 1

In Visual Basic, you use a ____ object to read data from a sequential access file.
A) StreamReaderWriter
B) StreamWriter
C) StreamRandom
D) StreamReader

Accepted Answer

A StreamReader object is used to read data from a sequential access file. The other options are not appropriate for this task - StreamWriter is used to write to a file, StreamRandom is used for accessing files randomly, and StreamReaderWriter is not a valid object in Visual Basic.

Question 2

The "____" filename extension typically is used when naming sequential access files.
A) ini
B) txt
C) wri
D) rtf

Accepted Answer

The "txt" file extension is typically used for sequential access files, which are files that are read or written sequentially from beginning to end, rather than randomly accessing specific parts of the file. This format is commonly used for simple text files that do not contain any special formatting or embedded objects. The other options are not typically associated with sequential access files.

Question 3

The Structure statement ends with the ____ keyword(s).
A) Stop Structure
B) Exit Structure
C) End
D) End Structure

Accepted Answer

The Structure statement is a way to group related code statements together in Visual Basic. The statement begins with the keyword "Structure" and ends with the keyword "End Structure". Therefore, the best choice is D, "End Structure".

Question 4

Sending data to a file is referred to as ____ the file.
A) interfacing with
B) burning
C) reading
D) writing to

Accepted Answer

The act of sending data to a file is commonly referred to as writing to the file. The other options (interfacing with, burning, and reading) do not accurately describe the act of sending data to a file.

Question 5

A class-level structure variable is declared using the keyword ____.
A) Dim
B) Private
C) Public
D) Structure

Accepted Answer

The answer of A class-level structure variable is declared using...

Question 6

In a Structure statement, each member variable's definition contains the keyword ____ followed by the variable's name.
A) Public
B) Private
C) Dim
D) As

Accepted Answer

The answer of In a Structure statement, each member variable's...

Question 7

You can use a structure to declare a variable.

Accepted Answer

A structure can be used to declare a variable with multiple components, such as declaring a struct for a person with name and age components.

Question 8

Getting data from a file is referred to as ____ the file.
A) interfacing with
B) burning
C) reading
D) writing to

Accepted Answer

When we want to extract information or data from a file, we use the operation called "reading." Therefore, the correct option here is C – reading. The option A, interfacing with, is too broad and can mean any type of communication with the file, it might involve reading, writing or modifying the file. The option B, burning, typically means writing or copying data onto a CD or DVD. Finally, the option D, writing to, refers to the operation of adding data to a file.

Question 9

Programmers use ____ to group related items into one unit.
A) members
B) constants
C) scalar variables
D) structures

Accepted Answer

Programmers use structures to group related items into one unit. Structures allow the programmer to create a new data type that combines different pieces of data into a single unit. They can contain various data types such as integers, characters, and arrays. The programmer can then refer to these data types as a single unit, which makes the code more organized and easier to read.

Question 10

A sequential access file is often referred to as a ____ file.
A) text
B) random
C) binary
D) byte

Accepted Answer

A sequential access file is typically a text file because it is read and written sequentially, meaning data is accessed in the order in which it appears in the file. Text files are the easiest to read sequentially because they contain human-readable characters and are typically organized in a straightforward manner. Random access files, on the other hand, allow for data to be read and written in any order, while binary files and byte files are typically used for storing non-textual data.

Question 11

The ____ method can be used to avoid the run time error that occurs when the computer cannot locate an input file..
A) Check
B) File
C) Exists
D) Ready

Accepted Answer

The "Exists" method is used to check if a file exists before attempting to open it, thereby avoiding runtime errors related to file not found.

Question 12

You can write data to a sequential access file using the ____ method.
A) Save
B) Write
C) Append
D) Open

Accepted Answer

The Write method is used to write data to a sequential access file. This method writes data to the end of the file, so it is good to use it when appending new records to an existing file.

Question 13

In most cases, an application will not need to read each line of text contained in a sequential access file.

Accepted Answer

Sequential access files are often read line by line, especially when processing text files, as this allows for the processing of data in the order it was written.

Question 14

A form's ____ event occurs when a form is about to be closed.
A) FormClosing
B) Exiting
C) FormExit
D) FormEnding

Accepted Answer

The FormClosing event is triggered just before a form is closed, allowing the programmer to perform any necessary actions before the form is closed.

Question 15

The PadLeft and PadRight methods pad a string with a character until the string is a specified length.

Accepted Answer

The PadLeft and PadRight methods can be used to add a character to the left or right side of a string until the string is a specified length.

Question 16

You can create your own data types in Visual Basic using the ____ statement.
A) Call
B) Structure
C) Data
D) Assignment

Accepted Answer

The correct statement to create your own data types in Visual Basic is the "Structure" statement. Structures allow you to define a custom data type that can contain fields of different data types, similar to creating a class. This can be useful when you want to group related data together or create a more complex data type than the basic data types provided by VB. The other options listed - Call, Data, and Assignment - do not relate to the creation of custom data types in Visual Basic.

Question 17

The only time that a form's FormClosing event occurs is when the user clicks the Close button on the form's title bar.

Accepted Answer

The FormClosing event can occur for several reasons besides the user clicking the Close button, such as calling the form's Close method programmatically, user logging off, system shutdown, or form owner closing.

Question 18

The members included in a structure can be variables, constants, or procedures.

Accepted Answer

The members of a structure can be variables, constants, and procedures.

Question 19

The Exists method returns a(n) ____ value.
A) string
B) integer
C) Boolean
D) character

Accepted Answer

The Exists method returns a Boolean value which is either true or false, indicating whether the specified element exists in the list or not.

Question 20

You refer to a member variable in an array element using the syntax ____.
A) arrayName.memberVariableName(subscript)
B) arrayName(subscript).memberVariableName
C) arrayName(memberVariableName)(subscript)
D) arrayName(subscript).variables(memberVariableName)

Accepted Answer

To refer to a member variable in an array element, we first use the array name followed by the subscript in parentheses to locate the specific element in the array. Then, we use the dot operator to access the specific member variable of that element. Therefore, option B is the correct syntax.

Quiz 11: Structures and Sequential Files

In Visual Basic, you use a ____ object to read data from a sequential access file.

The "____" filename extension typically is used when naming sequential access files.

The Structure statement ends with the ____ keyword(s) .

Sending data to a file is referred to as ____ the file.

A class-level structure variable is declared using the keyword ____.

In a Structure statement, each member variable's definition contains the keyword ____ followed by the variable's name.

You can use a structure to declare a variable.

Getting data from a file is referred to as ____ the file.

Programmers use ____ to group related items into one unit.

A sequential access file is often referred to as a ____ file.

The ____ method can be used to avoid the run time error that occurs when the computer cannot locate an input file..

You can write data to a sequential access file using the ____ method.

In most cases, an application will not need to read each line of text contained in a sequential access file.

A form's ____ event occurs when a form is about to be closed.

The PadLeft and PadRight methods pad a string with a character until the string is a specified length.

You can create your own data types in Visual Basic using the ____ statement.

The only time that a form's FormClosing event occurs is when the user clicks the Close button on the form's title bar.

The members included in a structure can be variables, constants, or procedures.

The Exists method returns a(n) ____ value.

You refer to a member variable in an array element using the syntax ____.