Prepare for Python Interview with iQwizz | Difficulty Level: Intermediate | Rating: 4.7

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Question 1

What does the 're.findall()' function return?

A list of all non-overlapping matches of the pattern in the string.
The first match of the pattern in the string.
None of the above.
A boolean value indicating whether the pattern is present in the string.

Question 2

What is the primary purpose of using classes in Python?

To create reusable blueprints for objects with shared attributes and behaviors.
To control program flow and logic.
To define functions for specific tasks.
To store data in a structured format like dictionaries.

Question 3

What does the following code snippet print?

def outer_func(x):
    def inner_func(y):
        return x + y
    return inner_func

my_func = outer_func(5)
print(my_func(3))

Error
5
15
8

Question 4

What does the following decorator do?

def my_decorator(func):
    def wrapper(*args, **kwargs):
        print('Something is happening before the function is called.')
        result = func(*args, **kwargs)
        print('Something is happening after the function is called.')
        return result
    return wrapper

@my_decorator
def say_hello():
    print('Hello!')

It prevents say_hello from being called.
It adds extra print statements before and after the execution of say_hello.
It modifies the arguments passed to say_hello.
It changes the return value of say_hello.

Question 5

Which principle of OOP is violated if you have to modify numerous parts of your code when making a small change to a class?

Encapsulation
Inheritance
Abstraction
Polymorphism

Question 6

Which regular expression will match any string that starts with 'a' and ends with 'z'?

'a.+z'
'^a.+z$'
'^a.*z$'
'a.*z'

Question 7

When might you choose to raise an exception manually using raise?

To replace all occurrences of built-in exceptions in your code.
When you want to signal that an unexpected condition has occurred that your code cannot handle directly.
To silently ignore errors and prevent the program from crashing.
To automatically retry a failed operation without any intervention.

Question 8

In a function definition, what is the order in which you should define different types of arguments?

keyword arguments, *args, positional arguments, **kwargs
positional arguments, keyword arguments, *args, **kwargs
*args, positional arguments, **kwargs, keyword arguments
**kwargs, keyword arguments, *args, positional arguments

Question 9

What is a key difference between instance methods and class methods in Python?

Instance methods are defined using the 'classmethod' decorator, while class methods use the 'staticmethod' decorator.
Class methods can access instance variables, while instance methods cannot access class variables.
Instance methods operate on specific instances of a class, while class methods operate on the class itself.
There is no practical difference; both can be used interchangeably.

Question 10

What is the purpose of the finally block in Python exception handling?

It specifies the type of exception to catch.
It defines a custom exception to be raised.
It executes only if an exception occurs in the try block.
It always executes after a try block, regardless of whether an exception occurred.

Please login before attempting the quiz

Question 1

What does the 're.findall()' function return?

A list of all non-overlapping matches of the pattern in the string.
The first match of the pattern in the string.
None of the above.
A boolean value indicating whether the pattern is present in the string.

Question 2

What is the primary purpose of using classes in Python?

To create reusable blueprints for objects with shared attributes and behaviors.
To control program flow and logic.
To define functions for specific tasks.
To store data in a structured format like dictionaries.

Question 3

What does the following code snippet print?

def outer_func(x):
    def inner_func(y):
        return x + y
    return inner_func

my_func = outer_func(5)
print(my_func(3))

Error
5
15
8

Question 4

What does the following decorator do?

def my_decorator(func):
    def wrapper(*args, **kwargs):
        print('Something is happening before the function is called.')
        result = func(*args, **kwargs)
        print('Something is happening after the function is called.')
        return result
    return wrapper

@my_decorator
def say_hello():
    print('Hello!')

It prevents say_hello from being called.
It adds extra print statements before and after the execution of say_hello.
It modifies the arguments passed to say_hello.
It changes the return value of say_hello.

Question 5

Which principle of OOP is violated if you have to modify numerous parts of your code when making a small change to a class?

Encapsulation
Inheritance
Abstraction
Polymorphism

Question 6

Which regular expression will match any string that starts with 'a' and ends with 'z'?

'a.+z'
'^a.+z$'
'^a.*z$'
'a.*z'

Question 7

When might you choose to raise an exception manually using raise?

To replace all occurrences of built-in exceptions in your code.
When you want to signal that an unexpected condition has occurred that your code cannot handle directly.
To silently ignore errors and prevent the program from crashing.
To automatically retry a failed operation without any intervention.

Question 8

In a function definition, what is the order in which you should define different types of arguments?

keyword arguments, *args, positional arguments, **kwargs
positional arguments, keyword arguments, *args, **kwargs
*args, positional arguments, **kwargs, keyword arguments
**kwargs, keyword arguments, *args, positional arguments

Question 9

What is a key difference between instance methods and class methods in Python?

Instance methods are defined using the 'classmethod' decorator, while class methods use the 'staticmethod' decorator.
Class methods can access instance variables, while instance methods cannot access class variables.
Instance methods operate on specific instances of a class, while class methods operate on the class itself.
There is no practical difference; both can be used interchangeably.

Question 10

What is the purpose of the finally block in Python exception handling?

It specifies the type of exception to catch.
It defines a custom exception to be raised.
It executes only if an exception occurs in the try block.
It always executes after a try block, regardless of whether an exception occurred.

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