CH. 2 - Concept of Comp. Problem Solving - Review

What is a constant in programming?

• A value that changes frequently during execution

• A fixed value that does not change during execution

• A memory location that stores temporary values

• A special type of variable that can store multiple values

Which of the following is NOT a rule for naming variables?

• The name must start with a letter

• Spaces can be used within the name

• The name should represent the variable’s purpose

• Symbols like dashes (-) should be avoided

Which of the following is a numeric data type?

• "Hello"

• 123.45

• True

• #&$%&

Which data type is used for logical decision-making?

• Character

• Numeric

• Boolean

• String

Which of the following is an example of a function?

• length(string)

• string + string

• a > b

• = (equal sign)

Which of these is NOT a type of function?

• Mathematical

• Statistical

• Physical

• Utility

Which of the following is a relational operator?

• +

• &&

• >=

• %

What happens to a variable’s value when a new value is assigned to it?

• The new value is added to the previous one

• The previous value is erased and replaced with the new value

• Both values are stored together in memory

• The computer creates a new variable for the new value

What does the term "hierarchy of operations" refer to in programming?

• The way memory is allocated for variables

• The order in which operators are executed in an expression

• The way functions are defined in a program

• The organization of data types in a system

Which of the following is an example of a statistical function?

• sqrt(x)

• length("Hello")

• max(10,20)

• abs(-5)