Question 1

The following very_important_fuction() function is given. Which attribute of this function stores docstring?

def very_important_fuction():

"""This is a very important function that always returns 1."""

return 1

Options :

A : very_important_fuction.__class__

B : very_important_fuction.__repr__

C : very_important_fuction.__name__

D : very_important_fuction.__doc__

E : very_important_fuction.__code__

Answer: D

Question 2

Which code snippet follows PEP 8 recommendations for making comparisons to the None object?

Options :

A :

if not user_input is None:

print('You have entered some value.')

B :

if user_input == None:

print('You have not entered any value.')

C :

if user_input = None:

print('You have not entered any value.')

D :

if user_input is None:

print('You have not entered any value.')

Answer: D

Question 3

Which of the following best describes the concept of single inheritance in object-oriented programming (OOP)?

Options :

A : Single inheritance is a mechanism that allows a class to inherit properties and behaviors from multiple base classes.

B : Single inheritance is the process of creating objects from a class and reusing its attributes and methods.

C : Single inheritance is the ability of a class to inherit properties and behaviors from its immediate parent class.

D : Single inheritance is the process of hiding certain attributes and methods of a class from its derived classes.

Answer: C

Question 4

Suppose you have the following class:

1. class ProductionLine:

2. def __init__(self, capacity):

3. self.capacity = capacity

You've created two instances of this class:

1. prod1 = ProductionLine(100)

2. prod2 = ProductionLine(200)

What is the result of the following operation?

Options :

A : prod1 + prod2

B : 300

C : 200

D : This code will raise the TypeError exception. Unsupported operation.

E : 100

Answer: D

Question 5

Which naming style does PEP 8 recommend for module names?

Options :

A : Modules should have short, all-lowercase names. Underscores cannot be used in the module name, e.g. mymodulename

B : A camelCase word or words that are not separated, e.g. myModuleName

C : Modules should have short, all-lowercase names. Underscores can be used in the module name if it improves readability, e.g. my_module_name

D : A PascalCase word or words that are not separated, e.g. MyModuleName

Answer: C

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