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Python Institute PCPP-32-101 Exam Syllabus Topics:

Section	Weight	Objectives
Topic 1: Advanced Object-Oriented Programming	25%	- Advanced Exceptions & Exception Chaining - Shallow vs Deep Copy & Serialization - Metaclasses & Metaprogramming - Attribute Access & Descriptors - Abstract Base Classes - Multiple Inheritance & Mixins - Design Patterns
Topic 2: GUI Programming	20%	- Event-Driven Paradigm - Event Handling & Callbacks - Tkinter Basics & Widgets - Dialogs & Application Structure
Topic 3: Network Programming	18%	- HTTP & Client-Server Communication - REST API Basics - JSON/XML Data Exchange - TCP/IP & Socket Programming
Topic 4: Modules, Packages & Advanced Features	10%	- Functional Programming Tools - Decorators & Context Managers - Import System & Namespaces
Topic 5: File & Data Processing	15%	- Logging & System Interaction - CSV & Configuration Files - XML & JSON Parsing - SQLite3 Database Operations
Topic 6: Coding Conventions, Best Practices & Standardization	12%	- Pythonic Principles - PEP 1, PEP 8, PEP 20, PEP 257 - Code Readability & Documentation

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Python Institute PCPP1 - Certified Professional in Python Programming 1 Sample Questions (Q27-Q32):

NEW QUESTION # 27
Select the true statement about the socket. gaierror exception.

A. It is raised when a system function returns a system-related error.
B. It is raised when a timeout occurs on a socket.
C. It is raised when an address-related error caused by the repr () function occurs.
D. It is raised when an address-related error caused by the getaddrinfo () and getnameinfo () functions occurs.

Answer: D

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.
Reference:
Official Python documentation on socket.gaierror: https://docs.python.org/3/library/socket.html#socket.
gaierror

NEW QUESTION # 28
What isa___traceback___?
(Select two answers )

A. An attribute owned by every exception object
B. An attribute that holds interesting information that is particularly useful when the programmer wants to store exception details in other objects
C. An attribute that is added to every object when the traceback module is imported
D. A special method delivered by the traceback module to retrieve a full list of strings describing thetraceback

Answer: A,B

Explanation:
Explanation
The correct answers are A. An attribute owned by every exception object and D. An attribute that holds interesting information that is particularly useful when the programmer wants to store exception details in other objects. A traceback is an attribute of an exception object that contains a stack trace representing the call stack at the point where the exception was raised. The traceback attribute holds information about the sequence of function calls that led to the exception, which can be useful for debugging and error reporting.

NEW QUESTION # 29
Select the true statements about the json.loads() function.
(Select two answers.)

A. It returns a Python entity.
B. It takes a JSON string as its argument.
C. It takes Python data as its argument.
D. It returns a JSON string.

Answer: A,B

Explanation:
The correct answers are C and D. The json.loads() function is used for JSON deserialization. It accepts a JSON-formatted string, bytes, or bytearray and converts that serialized JSON data into an equivalent Python object. For example, a JSON object becomes a Python dictionary, a JSON array becomes a Python list, JSON strings become Python strings, and JSON numbers become Python numeric values.
Option A describes json.dumps(), which takes Python data and serializes it into JSON text. Option B is also incorrect because returning a JSON string is the job of json.dumps(), not json.loads(). Therefore, json.loads() takes JSON text as input and returns a Python entity.

NEW QUESTION # 30
Select the true statement about composition

A. Composition is based on the has a relation: so it cannot be used together with inheritance.
B. Composition allows a class to be projected as a container of different classes
C. Composition is a concept that promotes code reusability while inheritance promotes encapsulation.
D. Composition extends a class's capabilities by adding new components and modifying the existing ones.

Answer: B

Explanation:
Composition is an object-oriented design concept that models a has-a relationship . In composition, a class known as composite contains an object of another class known as component . In other words, a composite class has a component of another class 1 .
B). Composition allows a class to be projected as a container of different classes.
Composition is a concept in Python that allows for building complex objects out of simpler objects, by aggregating one or more objects of another class as attributes. The objects that are aggregated are generally considered to be parts of the whole object, and the containing object is often viewed as a container for the smaller objects.
In composition, objects are combined in a way that allows for greater flexibility and modifiability than what inheritance can offer. With composition, it is possible to create new objects by combining existing objects, by using a container object to host other objects. By contrast, with inheritance, new objects extend the behavior of their parent classes, and are limited by that inheritance hierarchy.
References:
Official Python documentation on Composition: https://docs.python.org/3/tutorial/classes.html#composition GeeksforGeeks article on Composition vs Inheritance: https://www.geeksforgeeks.org/composition-vs- inheritance-python/ Real Python article on Composition and Inheritance: https://realpython.com/inheritance-composition-python/

NEW QUESTION # 31
What is true about the invocation of the cget () method?

A. It can be replaced with a dictionary-like access manner.
B. It can be used to read widget attributes.
C. It can be used to set new values to widget attributes.
D. It has the same effect as the config () method.

Answer: B

Explanation:
Explanation
The cget() method in Python is used to read the configuration options of a widget in Tkinter. It retrieves the value of a specified configuration option for a Tkinter widget. Hence, option A is the correct answer.

NEW QUESTION # 32
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