Are you preparing for Python programming exams, coding interviews, or certifications like PCAP or PCEP? This list of top 20 Python MCQ questions with answers covers essential topics like syntax, data structures, functions, OOP, and more. Perfect for beginners and intermediates aiming for roles at tech giants like Google, Amazon, or startups. Each question includes the correct answer and a concise explanation to boost your Python programming skills. Optimized for SEO, this guide is your go-to for Python MCQs for interviews and Python quiz practice. Let’s code smarter in 2025!
These Python multiple choice questions are curated from reliable sources and aligned with the latest Python 3 standards. Practice to achieve 90%+ accuracy!
1. What is Python primarily known for?
a) Hardware programming
b) General-purpose programming
c) System administration only
d) Database management
Answer: b) General-purpose programming
Explanation: Python is a versatile, high-level language used for web development, data science, automation, and more.
2. Which of the following is a correct Python variable name?
a) 1variable
b) my_variable
c) my-variable
d) my variable
Answer: b) my_variable
Explanation: Variable names must start with a letter or underscore, can include numbers, but no spaces or special characters like hyphens.
3. What does the `print()` function do in Python?
a) Reads user input
b) Outputs data to the console
c) Defines a function
d) Creates a loop
Answer: b) Outputs data to the console
Explanation: print() displays specified output, e.g., print("Hello") outputs “Hello” to the terminal.
4. Which data type is mutable in Python?
a) Tuple
b) String
c) List
d) Integer
Answer: c) List
Explanation: Lists can be modified (e.g., append, remove), while tuples, strings, and integers are immutable.
5. What is the output of `len(“Python”)`?
a) 5
b) 6
c) 7
d) 8
Answer: b) 6
Explanation: len() counts characters in a string; “Python” has 6 letters.
6. Which keyword defines a function in Python?
a) func
b) define
c) def
d) function
Answer: c) def
Explanation: def function_name(): is the syntax to define a function in Python.
7. What does the `//` operator do in Python?
a) Modulus
b) Floor division
c) Exponentiation
d) Division
Answer: b) Floor division
Explanation: // returns the integer quotient, e.g., 7 // 2 yields 3.
8. Which of these is a Python loop structure?
a) do-while
b) for
c) repeat-until
d) loop
Answer: b) for
Explanation: Python supports for and while loops; do-while and others are not native.
9. What is the correct syntax for a Python list comprehension?
a) [x for x in range(5)]
b) {x for x in range(5)}
c) (x for x in range(5))
d)
Answer: a) [x for x in range(5)]
Explanation: List comprehension creates a list, e.g., [0, 1, 2, 3, 4]; others are for sets or generators.
10. What does the `self` keyword refer to in Python?
a) Global variable b) Instance of a class c) Function name d) Module name **Answer: b) Instance of a class** *Explanation: `self` refers to the instance calling a method in a class, used in OOP.*
11. Which module is used for regular expressions in Python?
a) math b) re c) os d) sys **Answer: b) re** *Explanation: The `re` module handles pattern matching and string manipulation, e.g., `re.search()`.*
12. What is the output of `type(3.14)`?
a) int b) float c) str d) bool **Answer: b) float** *Explanation: `3.14` is a decimal number, so `type(3.14)` returns ``.*
13. How do you handle exceptions in Python?
a) try-except b) catch-throw c) error-try d) exception-do **Answer: a) try-except** *Explanation: `try:` block runs code; `except:` catches and handles errors, e.g., `ZeroDivisionError`.*
14. What is the default return value of a Python function?
a) 0 b) None c) False d) True **Answer: b) None** *Explanation: If no `return` statement is specified, a function returns `None`.*
15. Which method adds an element to the end of a list?
a) insert() b) append() c) extend() d) add() **Answer: b) append()** *Explanation: `list.append(x)` adds `x` to the end; `insert()` adds at a specific index, `extend()` adds multiple elements.*
16. What does the `import` keyword do?
a) Defines a class b) Loads a module c) Creates a variable d) Runs a loop **Answer: b) Loads a module** *Explanation: `import math` loads the math module for use, e.g., `math.sqrt()`.*
17. Which of these is a dictionary method?
a) pop() b) reverse() c) sort() d) index() **Answer: a) pop()** *Explanation: `dict.pop(key)` removes and returns the value for `key`; others are list methods.*
18. What is the output of `2 ** 3` in Python?
a) 6 b) 8 c) 9 d) 5 **Answer: b) 8** *Explanation: `**` is the exponentiation operator; `2 ** 3` equals 2³ = 8.*
19. What is the purpose of the `__init__` method in a class?
a) Deletes an object b) Initializes an object c) Calls a function d) Defines a loop **Answer: b) Initializes an object** *Explanation: `__init__` sets initial attributes for a class instance, e.g., `def __init__(self, x): self.x = x`.*
20. Which keyword checks for membership in a sequence?
a) is b) in c) if d) as **Answer: b) in** *Explanation: `x in list` checks if `x` is an element of `list`, returning `True` or `False`.*
Why Practice These Python MCQs?
These top 20 Python MCQ questions with answers are perfect for Python coding tests, competitive exams, and job interviews. They cover Python fundamentals, data structures, and OOP concepts, aligning with real-world applications like web development and data analysis. Regular practice enhances problem-solving speed and confidence.
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