Question 1

A blank space must precede and follow the concatenation operator (&).

Accepted Answer

A blank space must precede and follow the concatenation operator (&) to avoid ambiguity.

Question 2

A variable can be declared in more than one procedure without generating an error.

Accepted Answer

A variable can be declared in multiple procedures without issue, as long as the scope of the variable is limited to each individual procedure. If the same variable is declared with the same scope in multiple procedures, it may cause errors.

Question 3

A static variable is a procedure-level variable that retains its value even when the procedure in which it is declared ends.

Accepted Answer

A static variable retains its value even after the procedure in which it is declared ends, making it different from other procedure-level variables that are destroyed once the procedure ends.

Question 4

Integer, Long, and Short memory variables can store floating-point numbers.

Accepted Answer

Integer, Long, and Short memory variables can only store whole numbers (integers) and not floating-point numbers which require decimals.

Question 5

Data types and classes are not related to each other.

Accepted Answer

Data types are a classification of data, while classes are a way to organize code and data into objects. In some programming languages (such as Java), data types are implemented as classes, but they are still distinct concepts.

Question 6

Named constants make programs more self-documenting and easier to modify.

Accepted Answer

By using named constants, it is easier to understand the purpose of variables and make changes to the program's values without having to modify multiple instances of the value throughout the code. This makes the program more readable and maintainable.

Question 7

The data type returned by the Val function is Short data type.

Accepted Answer

The data type returned by the Val function is Double data type.

Question 8

Computers can process data stored in memory variables faster than data stored in a property of a control.

Accepted Answer

This is because accessing data stored in memory variables only requires the computer to read from a specific location in its memory, whereas accessing data stored in a property of a control may require the computer to perform additional operations such as locating and accessing the control itself.

Question 9

Data declared as Decimal data type is not subject to small rounding errors that may occur with floating-point numbers.

Accepted Answer

Decimal data type uses exact decimal representation whereas floating-point numbers use approximate binary representation, which may lead to small rounding errors.

Question 10

A named constant in a program can never be changed during program execution.

Accepted Answer

This is true. Once a named constant is defined and its value is set, it cannot be changed during program execution.

Question 11

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 12

A form button that has a darkened border when it does not have the focus is called the default button.

Accepted Answer

A default button is typically highlighted in some way, such as with a darkened border, to indicate that it will be activated (e.g., form submission) when the user presses the Enter key, even if it does not currently have focus.

Question 13

A variable that has procedure scope is available to all procedures in the application.

Accepted Answer

A variable that has procedure scope is only available within the procedure in which it is declared. It cannot be accessed by other procedures in the application.

Question 14

All numeric variables are initialized to zero lacking code to the contrary.

Accepted Answer

In most programming languages, numeric variables are initialized to zero by default unless otherwise specified in the code.

Question 15

The distance to the sun is 93,000,000 miles, which can be written using exponential notation as 93.0E5.

Accepted Answer

The correct exponential notation for 93,000,000 miles is 9.3E7, as it represents 9.3 times 10 to the power of 7.

Question 16

Boolean variables, when created, are always true unless otherwise stated.

Accepted Answer

Boolean variables can be either true or false upon creation, depending on how they are initialized or declared in the programming language being used.

Question 17

Single and Double type memory variables can hold floating-point numbers.

Accepted Answer

Single and Double type memory variables can hold floating-point numbers. Single can hold up to 7 decimal digits while Double can hold up to 15 decimal digits.

Question 18

A Short memory variable uses twice the amount of memory as an Integer variable.

Accepted Answer

A Short memory variable uses half the amount of memory as an Integer variable.

Question 19

When the Cancel button or the Close button is clicked on a dialog box created by the InputBox function, default value of the dialog box is used.

Accepted Answer

When the Cancel button or the Close button is clicked on a dialog box created by the InputBox function, an empty string ("") is returned, not the default value.

Question 20

It is a good practice to use the data type with the largest storage requirements to maintain program efficiency.

Accepted Answer

It is not a good practice to use the data type with the largest storage requirements if it is not necessary, as it can waste memory and lead to slower program execution. It is important to choose the appropriate data type based on the specific needs of the program.

Quiz 3: Using Variables and Constants