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Python Institute PCPP-32-101 Exam Syllabus Topics:

SectionObjectives
Network Programming and Communication- Web communication basics
  • 1. HTTP requests and APIs
    • 2. Data exchange formats
      Advanced Object-Oriented Programming- Class design and advanced inheritance
      • 1. Abstract classes and interfaces
        • 2. Multiple inheritance and MRO
          - Metaprogramming basics
          • 1. Decorators and class decorators
            • 2. Introspection techniques
              Python Standard Library and Best Practices- Testing and debugging
              • 1. Unit testing with unittest/pytest concepts
                • 2. Debugging techniques
                  - File and data processing
                  • 1. Working with files and directories
                    • 2. Serialization (JSON, CSV)
                      GUI Programming- Tkinter fundamentals
                      • 1. Event handling
                        • 2. Widgets and layout management

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                          Python Institute PCPP1 - Certified Professional in Python Programming 1 Sample Questions (Q42-Q47):

                          NEW QUESTION # 42
                          Which sentence about the property decorator is false?

                          Answer: C

                          Explanation:
                          The @property decorator should be defined after the method that is responsible for setting an encapsulated attribute is a false sentence. In fact, the @property decorator should be defined before the method that is used to set the attribute value. The @property decorator and the setter and deleter methods work together to create an encapsulated attribute, which is used to provide control over the attribute's value.
                          Reference:
                          Official Python documentation on Property: https://docs.python.org/3/library/functions.html#property The @property decorator is used to designate a method as a getter for an instance attribute. The method decorated with @property should be defined before any setter or deleter methods for the same attribute.


                          NEW QUESTION # 43
                          Which one of the following methods allows you to debug an XML tree in the xml.etree ELementTree module?

                          Answer: A

                          Explanation:
                          The dump() method in the xml.etree.ElementTree module allows you to output a debug representation of an XML tree to a file or standard output. This method is useful for analyzing the structure of the tree and tracking down errors.
                          Reference: Official Python documentation on the ElementTree module: https://docs.python.org/3/library/xml.
                          etree.elementtree.html


                          NEW QUESTION # 44
                          If w is a correctly created main application window, which method would you use to foe both of the main window's dimensions?

                          Answer: B

                          Explanation:
                          C). w.resizable()
                          The resizable() method takes two Boolean arguments, width and height , that specify whether the main window can be resized in the corresponding directions. Passing False to both arguments makes the main window non-resizable, whereas passing True to both arguments (or omitting them) makes the window resizable.
                          Here is an example that sets the dimensions of the main window to 500x400 pixels and makes it non-resizable:
                          import tkinter as tk
                          root = tk. Tk ()
                          root. geometry ( "500x400" )
                          root. resizable (False, False)
                          root. mainloop ()
                          References:
                          Tkinter documentation: https://docs.python.org/3/library/tk.html
                          Tkinter tutorial: https://www.python-course.eu/python_tkinter.php
                          The resizable () method of a tkinter window object allows you to specify whether the window can be resized by the user in the horizontal and vertical directions. You can pass two boolean arguments to this method, such as w.resizable (False, False), to prevent both dimensions from being changed. Alternatively, you can pass 0 or 1 as arguments, such as w.resizable (0, 0), to achieve the same effect 1 .
                          References:
                          1 : https://stackoverflow.com/questions/36575890/how-to-set-a-tkinter-window-to-a-constant-size Other methods that can be used to control the window size are:
                          w.geometry () : This method allows you to set the initial size and position of the window by passing a string argument in the format "widthxheight+x+y", such as w.geometry ("500x500+100+100") 1 2 .
                          w.minsize () and w.maxsize (): These methods allow you to set the minimum and maximum size of the window in pixels, such as w.minsize (500, 500) and w.maxsize (1000, 1000) 1 2 .
                          w.pack_propagate () and w.grid_propagate (): These methods allow you to enable or disable the propagation of the size of the widgets inside the window to the window itself. By default, these methods are set to True, which means that the window will adjust its size according to the widgets it contains. You can set these methods to False or 0 to prevent this behavior, such as w.pack_propagate (0) or w.grid_propagate (0).
                          w.place (): This method allows you to place the window at a specific position and size relative to its parent window or screen. You can use keyword arguments such as x, y, width, height, relx, rely, relwidth, and relheight to specify the coordinates and dimensions of the window in absolute or relative terms, such as w.
                          place (x=0, y=0, relwidth=1, relheight=1).
                          References:
                          2 : https://stackoverflow.com/questions/25690423/set-window-dimensions-in-tkinter-python-3 :
                          https://stackoverflow.com/questions/36575890/how-to-set-a-tkinter-window-to-a-constant-size
                          /36576068#36576068 : https://www.skotechlearn.com/2020/06/tkinter-window-position-size-center-screen-in- python.html


                          NEW QUESTION # 45
                          Which of the following values can be returned by the messagebox. askquestion () method?

                          Answer: B

                          Explanation:
                          The messagebox.askquestion() method in Python's tkinter library displays a message box with a specified question and two response buttons labeled "Yes" and "No". It returns a string indicating which button was selected - either "yes" or "no".
                          This function is used to ask questions to the user that have only two options: YES or NO. It can be used to ask the user if they want to continue or if they want to submit something 1 .


                          NEW QUESTION # 46
                          Select the true statement about the socket. gaierror exception.

                          Answer: D

                          Explanation:
                          Explanation
                          The socket.gaierror exception is raised when an address-related error caused by the getaddrinfo() and getnameinfo() functions occurs. These functions are used to translate hostnames to IP addresses and vice versa, and the gaierror exception is raised if they fail to perform this translation.


                          NEW QUESTION # 47
                          ......

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