Functional Programming Quiz

What is the main characteristic of the functional programming paradigm?

• Functions are used as a way to construct algorithms

• Variables can be reassigned freely

• Programs are structured around objects and their methods

• It requires strict sequencing of instructions

Which of the following are examples of declarative programming language?

• Haskell

• SQL

• Python

• Assembly

In functional programming, what is meant by "no side effects"?

• A function always returns multiple values

• Functions can modify variables outside their scope

• Functions always produce the same output for the same input

• Functions depend on external states to compute results

What is the definition of a first-class object in functional programming?

• An object that is declared at the start of a program

• An object that can be passed as an argument or returned from a function

• An object that can only store numeric values

• An object that is immutable

Which of these is an example of a higher-order function?

• A function that calculates the factorial of a number

• A function that takes another function as an argument

• A function that multiplies two numbers

• A function that reverses a string

What does the map function do in functional programming?

• Filters elements of a list based on a condition

• Applies a function to each element of a list and returns a new list

• Combines all elements of a list into a single value

• Splits a list into smaller sublists

What is the purpose of the filter function?

• To apply a function to every element in a list

• To create a subset of elements that meet a specific condition

• To find the length of a list

• To map elements from one list to another

What is the output of the following Haskell code: map (*2) [1,2,3]?

• [1,2,3]

• [2,4,6]

• [1,4,9]

• 12

In functional programming, what does "partial function application" mean?

• A function applied to incomplete data

• A function created by fixing some arguments of another function

• A function that only works on certain data types

• A function with no return value

Which of the following represents function composition?

• g(f(x))

• f(x) = x + g(x)

• h(x) = f○g(x)

• f(x, y) = x * y