Quiz Arena: Python Interview Challenge ⭐

Q1. What is the difference between a list and a tuple in Python?

List is immutable and tuple is mutable List is mutable and tuple is immutable Both are immutable Both are mutable

Q2. What is the difference between == and is in Python?

Both always check object identity == checks identity and is checks value == checks equality of values and is checks object identity Both check only memory address

Q3. What is a Python decorator?

A variable used to store functions A function that modifies or extends the behavior of another function A type of database A Python package manager

Q4. What is the purpose of the yield keyword in Python?

It terminates the program It creates a class It produces values from a generator one at a time It raises an exception

Q5. What is a generator in Python?

A function that always returns a list A function used only for mathematical calculations An iterator that generates values lazily, usually using yield A Python module

Q6. What is the difference between shallow copy and deep copy?

They are exactly the same Shallow copy copies the outer object while deep copy recursively copies nested objects Deep copy only works with strings Shallow copy always creates a completely independent nested object

Q7. Which module provides copy() and deepcopy() functions in Python?

os sys copy What will be the output? def test(value=[]): value.append(1) return value print(test()) print(test())

Q8. What will be the output? def test(value=[]): value.append(1) return value print(test()) print(test())

[1] and [1] [ ] and [ ] [1] and [1, 1] Error

Q9. Why should mutable default arguments generally be avoided in Python functions?

They are always slower The same mutable object is reused across function calls Python does not allow mutable arguments Python does not allow mutable arguments

Q10. What is list comprehension in Python?

A way to define a class A way to handle exceptions A concise way to create lists using an expression and optional conditions A method for sorting dictionaries

Q11. What will be the output? numbers = [1, 2, 3, 4, 5] result = [x * 2 for x in numbers if x % 2 == 0] print(result)

[2, 4, 6, 8, 10] [4, 8] [2, 6, 10] [1, 3, 5]

Q12. What is the purpose of the map() function in Python?

To filter elements based on a condition To apply a function to each item of an iterable To sort an iterable To remove duplicate values

Q13. What is the purpose of filter() in Python?

To apply a function to every item and always return all items To select items from an iterable based on a condition To sort a list To convert a list into a dictionary

Q14. What is the difference between @staticmethod and @classmethod?

Both must receive self staticmethod receives cls and classmethod receives self staticmethod does not receive self or cls automatically, while classmethod receives cls There is no difference

Q15. What does self represent inside a Python class method?

The parent class The Python interpreter The current instance of the class The module name

Q16. What is method overriding in Python?

Creating multiple objects of the same class Defining a method in a child class with the same name as a parent class method Deleting a method from a class Calling a private method

Q17. What is the purpose of super() in Python?

It creates a new Python process It allows access to methods or attributes of a parent class It deletes the parent class It converts a class into a function

Q18. What is duck typing in Python?

Checking the exact class name before using an object An object's suitability is determined by its behavior or available methods rather than its exact type A technique for sorting objects A method for memory allocation

Q19. What is the Global Interpreter Lock (GIL) in CPython?

A lock that prevents all types of concurrency A mechanism that allows only one thread at a time to execute Python bytecode in a CPython process A database locking mechanism A lock used only for file operations

Q20. For a CPU-bound task in standard CPython, which approach can provide true parallel execution across CPU cores?

Using only multiple threads Using time.sleep() Using multiple processes Using a list comprehension

Q21. What is the purpose of try, except, else, and finally in Python?

They are used only for loops They provide structured exception handling and cleanup They are used to define classes They are used only for database connections

Q22. What is the difference between raise and assert in Python?

Both are exactly the same raise explicitly raises an exception, while assert checks a condition and raises AssertionError if it is false assert is used only for loops raise is used only for strings

Q23. What is a context manager in Python?

A tool used only to create classes An object that manages setup and cleanup around a block of code, commonly used with the with statement A database engine A type of Python variable

Q24. Why is the with statement commonly used when working with files?

It makes the file read-only It automatically converts the file to JSON It ensures the file is properly closed after the block is completed It prevents all file errors

Q25. What will be the output? x = [1, 2, 3] y = x.copy() y.append(4) print(x) print(y)

[1, 2, 3] and [1, 2, 3] [1, 2, 3, 4] and [1, 2, 3, 4] [1, 2, 3] and [1, 2, 3, 4] Error

Python Interview Challenge ⭐

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