Python Functions Test for Data Science (Free MCQs)

• (a) function
• (b) define
• (c) def
• (d) fun

2. What is the output of: def test(): return 5; print(test())?

• (a) Nothing
• (b) Error
• (c) 5
• (d) test

• (a) 0
• (b) None
• (c) Error
• (d) Empty string

4. What is the correct syntax for a function with one parameter?

• (a) function test(x):
• (b) def test[x]:
• (c) def test(x):
• (d) def test.x:

5. Which term describes variables defined inside a function?

• (a) Global variables
• (b) Local variables
• (c) Public variables
• (d) Static variables

6. What will be the output of: def add(a,b): return a+b; print(add(2,3))?

• (a) 23
• (b) 5
• (c) 2+3
• (d) Error

• (a) They have multiple expressions
• (b) They are anonymous functions
• (c) They require the def keyword
• (d) They must return None

8. What is the output of: f = lambda x: x*2; print(f(4))?

• (a) 2
• (b) 8
• (c) 4
• (d) Error

• (a) Exits the function and returns a value
• (b) Prints the result
• (c) Stops the program
• (d) Defines a variable

• (a) Both run
• (b) First runs, second ignored
• (c) Both cause an error
• (d) None run

11. Which is the correct way to define a function with a default argument?

• (a) def test(x = 5):
• (b) def test(default x = 5):
• (c) def test(=5 x):
• (d) def test{5}:

• (a) pass
• (b) 0
• (c) None
• (d) Error

13. Which function is used to get the number of arguments passed?

• (a) args()
• (b) count()
• (c) len()
• (d) No direct built-in

14. What are *args used for?

• (a) To return multiple values
• (b) To accept variable number of positional arguments
• (c) To pass dictionary values
• (d) To define default parameters

15. What are **kwargs used for?

• (a) To pass multiple strings
• (b) To accept variable number of keyword arguments
• (c) To define static variables
• (d) To create global variables