Question 1

A named constant's value cannot be changed while the application is running.

Accepted Answer

A named constant's value is fixed and cannot be changed during runtime.

Question 2

You can eliminate the problems that occur as a result of implicit type conversions by entering the Option Explicit On statement in the General Declarations section of the Code Editor window.

Accepted Answer

False

Question 3

Date variables are automatically set to which value when created?
A) 1/1/1980 12:00:00 AM
B) 1/1/2000 12:00:00 AM
C) 1/1/0001 12:00:00 AM
D) 1/1/0000 12:00:00 AM

Accepted Answer

When a date variable is created, it is automatically set to January 1st, 0001 at 12:00:00 AM.

Question 4

The assignment operator in Visual Basic is the ____ symbol.
A) ^
B).
C) >
D) =

Accepted Answer

The assignment operator in Visual Basic is the equal sign (=).

Question 5

Calculations involving Decimal variables are not subject to the small rounding errors that may occur when using Double or Single variables.

Accepted Answer

The answer of Calculations involving Decimal variables are not subject...

Question 6

All numeric variables are automatically initialized to 0 if no initial value is specified when the variable is declared.

Accepted Answer

This is because in most programming languages, including Python, the default value for numeric variables is 0.

Question 7

You cannot associate a procedure with more than one object or event.

Accepted Answer

It is possible to associate a procedure with multiple objects or events by calling the same procedure when any of those objects or events are triggered.

Question 8

Which of the following statements subtracts the contents of the intNum1 variable from the contents of the intNum2 variable, and then multiples the difference by 3? The result is assigned to the intResult variable.
A) intNum1 - intNum2 * 3 = intResult
B) (intNum2 - intNum1) * 3 = intResult
C) intResult = (intNum1 - intNum2) * 3
D) intResult = (intNum2 - intNum1) * 3

Accepted Answer

Option D correctly subtracts the contents of the intNum1 variable from the contents of the intNum2 variable, then multiplies the result by 3 and assigns it to the intResult variable.

Question 9

A memory variable that is a Double data type requires ____ bytes of storage.
A) 2
B) 4
C) 6
D) 8

Accepted Answer

A Double data type in programming requires 8 bytes of storage in memory.

Question 10

Which of the following statements declares a Double variable named dblAverage ?
A) Dim dblAverage As Double
B) Dim As Double dblAverage
C) Const dblAverage As Constant
D) Dim dblAverage As Single

Accepted Answer

Option A declares a Double variable named dblAverage using the Dim keyword followed by the variable name and data type. Option B swaps the order of the variable name and data type, which is not valid syntax. Option C uses the Const keyword to declare a constant variable, not a Double data type. Option D declares a Single variable instead of a Double.

Question 11

The value returned by the InputBox function depends on the button the user chooses.

Accepted Answer

The value returned by the InputBox function is determined by the button the user chooses (i.e. OK or Cancel). If the user chooses OK, the function returns the text entered in the input box. If the user chooses Cancel or closes the input box window, the function returns an empty string.

Question 12

Instead of storing data in the properties of various controls, programmers can create ____, which are memory locations inside the computer, to store data.
A) characters
B) variables
C) integers
D) strings

Accepted Answer

Variables are memory locations used to store data in programming languages. They allow programmers to easily manipulate and modify the stored data while the program is running. The other choices (characters, integers, and strings) are data types that can be stored in variables, but they do not refer to the variables themselves.

Question 13

A Boolean variable is initialized to the value True if no initial value is stated when the variable is declared.

Accepted Answer

By default, a Boolean variable is not automatically initialized to True if no initial value is stated; its default initialization value depends on the programming language being used.

Question 14

Spaces are allowed in variable names.

Accepted Answer

Variable names cannot contain spaces; they must be a continuous string of characters, which can include letters, digits, and underscores.

Question 15

Object and String variables are automatically initialized using ____.
A) spaces
B) the keyword Nothing (no data at all)
C) the word "Nothing"
D) 0

Accepted Answer

Object and String variables are automatically initialized to the keyword Nothing, which means no data at all. It is important to note that this is different from variables of primitive types such as integers or doubles, which are automatically initialized to 0.

Question 16

Which of the following can store a number containing a decimal place?
A) Single
B) Long
C) String
D) Integer

Accepted Answer

Single is a data type in programming which can store numbers containing the decimal place.

Question 17

A variable name must begin with a letter or a(n) ____.
A) ampersand (&)
B) percent sign (%)
C) exclamation mark (!)
D) underscore (_)

Accepted Answer

A variable name must begin with a letter or an underscore.

Question 18

Every numeric data type in Visual Basic has a ____ method that can be used to convert a string to that numeric data type.
A) Convert
B) Format
C) TryParse
D) Number

Accepted Answer

The TryParse method is the best choice as it will attempt to convert the string to the specified numeric data type and return a Boolean value indicating success or failure. It also avoids throwing an exception if the conversion fails.

Question 19

A variable declared in the Declaration section of a form is called a procedure-level variable.

Accepted Answer

A variable declared in the Declaration section of a form is called a form-level variable or a global variable, accessible to all procedures within that form.

Question 20

Data types and classes are not related to each other.

Accepted Answer

Data types are classifications of data items whereas classes are blueprints for creating objects that belong to a specific type or category. In object-oriented programming, classes define data types.

Quiz 3: Using Variables and Constants

A named constant's value cannot be changed while the application is running.

You can eliminate the problems that occur as a result of implicit type conversions by entering the Option Explicit On statement in the General Declarations section of the Code Editor window.

Date variables are automatically set to which value when created?

The assignment operator in Visual Basic is the ____ symbol.

Calculations involving Decimal variables are not subject to the small rounding errors that may occur when using Double or Single variables.

All numeric variables are automatically initialized to 0 if no initial value is specified when the variable is declared.

You cannot associate a procedure with more than one object or event.

Which of the following statements subtracts the contents of the intNum1 variable from the contents of the intNum2 variable, and then multiples the difference by 3? The result is assigned to the intResult variable.

A memory variable that is a Double data type requires ____ bytes of storage.

Which of the following statements declares a Double variable named dblAverage ?

The value returned by the InputBox function depends on the button the user chooses.

Instead of storing data in the properties of various controls, programmers can create ____, which are memory locations inside the computer, to store data.

A Boolean variable is initialized to the value True if no initial value is stated when the variable is declared.

Spaces are allowed in variable names.

Object and String variables are automatically initialized using ____.

Which of the following can store a number containing a decimal place?

A variable name must begin with a letter or a(n) ____.

Every numeric data type in Visual Basic has a ____ method that can be used to convert a string to that numeric data type.

A variable declared in the Declaration section of a form is called a procedure-level variable.

Data types and classes are not related to each other.