PCPP-32-101 Exam: Absolutely Free Online Practice

Question 1
- What is metaprogramming?
  
  A :
  It-s one of the fundamental concepts in object-oriented programming paradigm. It describes a class that references one or more objects of other classes in instance variables. This allows you to model a has-a relation between objects.
  
  B : It-s a programming technique in which computer programs have the ability to treat other programs as their data. It means that a program can be designed to read, generate, analyze or transform other programs, and even modify itself while running.
  
  C : It-s one of the core concepts of object-oriented programming paradigm. It is a mechanism where you can derive a class from another class for a hierarchy of classes that share a set of attributes and methods.
  
  D : It-s the concept of providing a single interface to objects of different types.
  
  Answer: B
Question 2
- You are building a Python application that needs to send an HTTP POST request with JSON data to a remote server. Which code snippet correctly demonstrates the usage of the requests module to accomplish this task?
  A : import requests
  url = "https://api.example.com/data"
  data = {"key": "value"}
  response = requests.get(url, json=data)
  
  B : import requests
  url = "https://api.example.com/data"
  data = {"key": "value"}
  response = requests.patch(url, json=data)
  
  C : import requests
  url = "https://api.example.com/data"
  data = {"key": "value"}
  response = requests.put(url, json=data)
  
  D : import requests
  url = "https://api.example.com/data"
  data = {"key": "value"}
  response = requests.post(url, json=data)
  
  Answer: D
Question 3
- You are developing a Python project and want to follow the PEP 8 guidelines for using comments effectively. Which of the following scenarios demonstrates the correct usage of block comments and inline comments according to PEP 8?
  
  A : def calculate_sum(a, b):
  # This function calculates the sum of two numbers
  return a + b
  
  B : # This function calculates the sum of two numbers
  def calculate_sum(a, b):
  """
  Adding the numbers together.
  """
  return a + b
  
  C : # This function calculates the sum of two numbers
  def calculate_sum(a, b):
  return a + b # Adding the numbers together
  
  D : # calculate_sum function
  # This function adds two numbers together and returns the result
  def calculate_sum(a, b):
  return a + b
  
  E : def calculate_sum(a, b):
  """
  This function calculates the sum of two numbers.
  Args:
  a: The first number.
  b: The second number.
  Returns:
  The sum of the two numbers.
  """
  return a + b
  
  Answer: E
Question 4
- Suppose you have the following code:
  class ClientList(list):
  def search_email(self, value):
  result = [client for client in self if value in client.email]
  return result
  
  class Client:
  all_clients = ClientList()
  
  def __init__(self, name, email):
  self.name = name
  self.email = email
  Client.all_clients.append(self)
  Select all true statements. (select 2)
  
  A :
  all_clients attribute is an example of an instance attribute of Client class.
  
  B : all_clients is a class attribute of Client class.
  
  C : name and email attributes are examples of instance attributes of Client class.
  
  D : search_email attribute is an example of an instance attribute of ClientList class.
  
  Answer: B,C
Question 5
- A concept of handling exceptions raised by other exception handling code...
  A : is not used in Python.
  
  B : is called exception suppression.
  
  C : is called exception raising.
  
  D : is called exception chaining.
  
  Answer: D

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