Functional Programming Quiz

What is the main focus of imperative programming?

• What should happen
  

• How to do it

• Using pattern matching

• None of the above

Which language is an example of a declarative language?

• C

• Java

• SQL

• Assembly

What is a key characteristic of declarative programming?

• a) Programs describe what the result should look like

• b) Programs prescribe a sequence of steps

• c) Programs use only loops

• d) Programs must have side effects

What does referential transparency mean?

• a) A function always produces the same result for the same input

• b) A function changes its return value based on external conditions

• c) A function modifies external variables

• d) A function uses mutable state

Which of the following violates referential transparency?

• a) A function that returns the sum of two numbers

• b) A function that modifies a global variable

• c) A function that always returns the same output for a given input

• d) A function that calculates the square of a number

Which of the following is NOT a characteristic of functional programming?

• a) Referential transparency
  

• b) Mutable state
  

• c) First-class functions
  

• d) Pattern matching