Python Institute PCPP-32-101 Prüfung Übungen und Antworten

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Python Institute PCPP-32-101 Exam Syllabus Topics:

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

                          >> PCPP-32-101 Antworten <<

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                          Python Institute PCPP1 - Certified Professional in Python Programming 1 PCPP-32-101 Prüfungsfragen mit Lösungen (Q41-Q46):

                          41. Frage
                          Select a log that matches the following format:
                          '%(name)s[%(levelname)s][%(asctime)s] :%(message)s'

                          Antwort: C

                          Begründung:
                          The correct answer is C. The logging format string requires the logger name first, followed immediately by the log level in square brackets, then the timestamp in square brackets, followed by a colon and the message. The default value produced by %(asctime)s includes milliseconds separated by a comma, such as 2019-10-19 18:21:35,407. Option C exactly matches that structure: root is the logger name,
                          [CRITICAL] is the level name, [2019-10-19 18:21:35,407] is the timestamp, and Invalid argument is the message. Options B and D use colon separators instead of brackets, while option A omits the milliseconds required by the default asctime format.


                          42. Frage
                          Select the true statements about sockets. (Select two answers)

                          Antwort: B,C

                          Begründung:
                          Explanation
                          A socket is a connection point that enables a two-way communication between programs running in a network.
                          This statement is true because a socket is a software structure that serves as an endpoint for sending and receiving data across a network. A socket is defined by an application programming interface (API) for the networking architecture, such as TCP/IP. A socket can be used to establish a communication channel between two programs running on the same or different network nodes12.
                          A socket is always the secure means by which computers on a network can safely communicate, without the risk of exposure to an attack.
                          This statement is false because a socket by itself does not provide any security or encryption for the data transmitted over the network. A socket can be vulnerable to various types of attacks, such as eavesdropping, spoofing, hijacking, or denial-of-service. To ensure secure communication, a socket can use additional protocols or mechanisms, such as SSL/TLS, SSH, VPN, or firewall3.
                          A socket is a connection point that enables a one-way communication only between remote processes.
                          This statement is false because a socket can enable both one-way and two-way communication between processes running on the same or different network nodes. A socket can be used for connection-oriented or connectionless communication, depending on the type of protocol used. For example, TCP is a connection-oriented protocol that provides reliable and bidirectional data transfer, while UDP is a connectionless protocol that provides unreliable and unidirectional data transfer12.
                          A socket can be used to establish a communication endpoint for processes running on the same or different machines.
                          This statement is true because a socket can be used for inter-process communication (IPC) within a single machine or across different machines on a network. A socket can use different types of addresses to identify the processes involved in the communication, such as IP address and port number for network sockets, or file name or path for Unix domain sockets12.
                          References:
                          1: https://en.wikipedia.org/wiki/Network_socket 2:
                          https://www.geeksforgeeks.org/socket-in-computer-network/ 3:
                          https://www.tutorialspoint.com/what-is-a-network-socket-computer-networks


                          43. Frage
                          In the JSON processing context, the term serialization:

                          Antwort: B

                          Begründung:
                          In the JSON processing context, the term serialization: A. names a process in which Python data is turned into a JSON string.
                          Serialization refers to the process of converting a data object, such as a Python object, into a format that can be easily transferred over a network or stored in a file. In the case of JSON, serialization refers to converting Python data into a string representation using the JSON format. This string can be sent over a network or stored as a file, and later deserialized back into the original Python data object.
                          Reference: Official Python documentation on json: https://docs.python.org/3/library/json.html#json- serialization


                          44. Frage
                          Select the true statements about the sqirte3 module. (Select two answers.)

                          Antwort: C,D

                          Begründung:
                          Explanation
                          The sqlite3 module in python provides an interface compliant to the DB-API 2.0. Thus, it follows a standard performance metric that allows for consistency in database programming with python.
                          The special name 'memory' is used to create a database in RAM using the sqlite3 module. Thus, when you use it as the name of the database file while opening a connection, it creates a temporary database that exists only in memory.


                          45. Frage
                          What is true about the constructor's argument, which sets the button's title to a desired string?

                          Antwort: D

                          Begründung:
                          The correct answer is D. In Tkinter, the text displayed on a Button widget is normally configured with the keyword argument text. For example, Button(root, text="OK") creates a button whose visible caption is OK. This value is not determined by the second or third positional argument in a reliable, recommended way. Tkinter widget constructors are designed to receive the parent widget first and then configuration options as keyword arguments. The keyword title is not the standard option for button captions; titles are associated more with windows, such as setting a top-level window title. For a button' s label, the correct constructor argument is text.


                          46. Frage
                          ......

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