2.2 Programming Fundementals

The following is not true about variable names:

• They must be descriptive

• They must be in capital letters

• They cannot start with numbers or contain spaces

• They point to memory locations

Which of the following is a valid keyword for output?

• MODIFY

• EDIT

• DISPLAY

• INPUT

Consider the following expression: a = b. This means:

• a will always be equal to b

• b is being renamed into a

• The value of memory location a gets copied into memory location b

• The value of memory location b gets copied into memory location a

Which of the following is not a valid data type?

• Real

• String

• Character

• Fraction

Whole numbers are best stored using this data type:

• Boolean

• Character

• Integer

• Real

This variable type can only have the values TRUE or FALSE:

• Boolean

• Integer

• String

• Character

Casting refers to:

• Boolean algebra

• Rounding of reals

• Converting data to a different type

• Printing out of the program's results

The operator finds the remainder after integer division:

• Integer division

• MOD

• Division

• Subtraction

The statement A OR B implies A and B are:

• Integers

• Strings

• Booleans

• Characters

This function calculates the length of a string:

• UBOUND()

• INDEX()

• LEN()

• COUNT()