PCPP-32-101受験トレーリング & PCPP-32-101トレーニング資料

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Python Institute PCPP-32-101 Exam Syllabus Topics:

Section	Weight	Objectives
Topic 1: Multithreading and Concurrency	10%	- Concurrent programming 1. Thread creation and management 2. Concurrency considerations 3. Thread communication 4. Synchronization mechanisms
Topic 2: GUI Programming	20%	- Graphical user interfaces with Tkinter 1. User interaction 2. Event handling 3. Application structure 4. Widgets and layouts
Topic 3: Advanced Object-Oriented Programming	25%	- Object-oriented concepts 1. Method overriding and extension 2. Encapsulation and abstraction 3. Inheritance and polymorphism 4. Class and instance attributes
Topic 4: File Processing and Serialization	15%	- Data storage and transfer 1. Persistent data management 2. CSV handling 3. Pickle serialization 4. JSON processing
Topic 5: Python Standard Library and Best Practices	10%	- Advanced Python development 1. Code organization 2. Using standard library modules 3. Error handling and debugging 4. Professional programming practices
Topic 6: Network Programming	20%	- Communication and networking 1. Client-server communication 2. Network services 3. Socket programming 4. Protocols and data exchange

>> PCPP-32-101受験トレーリング <<

PCPP-32-101トレーニング資料 & PCPP-32-101日本語解説集

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Python Institute PCPP1 - Certified Professional in Python Programming 1 認定 PCPP-32-101 試験問題 (Q67-Q72):

質問 # 67
What is true about type in the object-oriented programming sense?

A. It is the bottommost type that any object can inherit from.
B. It is a built-in method that allows enumeration of composite objects
C. It is an object used to instantiate a class
D. It is the topmost type that any class can inherit from

正解：D

解説：
In Python, type is the built-in metaclass that serves as the base class for all new-style classes. All new-style classes in Python, including built-in types like int and str , are instances of the type metaclass and inherit from it.

質問 # 68
Analyze the following snippet and select the statement that best describes it.

A. The *arg parameter holds a list of unnamed parameters
B. The code is missing a placeholder for unnamed parameters.
C. The code is syntactically correct despite the fact that the names of the function parameters do not follow the naming convention
D. The code is syntactically incorrect - the function should be defined as def f1 (*args, **kwargs) :

正解：A

解説：
The provided code snippet defines a function f1 that accepts variable-length arguments using the *args and **kwargs syntax. The *args parameter allows for an arbitrary number of unnamed arguments to be passed to the function as a tuple, while the **kwargs parameter allows for an arbitrary number of named arguments to be passed to the function as a dictionary.
Therefore, the correct statement that best describes the code is:
B). The *args parameter holds a list of unnamed parameters, while the **kwargs parameter holds a dictionary of named parameters.
Reference:
Official Python documentation on Function definitions: https://docs.python.org/3/tutorial/controlflow.
html#defining-functions
The arg parameter holds a list of unnamed parameters . In the given code snippet, the f1 function takes two arguments: *arg and **kwarg . The *arg syntax in the function signature is used to pass a variable number of non-keyword (positional) arguments to the function. Inside the function, arg is a tuple containing the positional arguments passed to the function. The **kwarg syntax in the function signature is used to pass a variable number of keyword arguments to the function. Inside the function, kwarg is a dictionary containing the keyword arguments passed to the function.

質問 # 69
Which of the following examples using line breaks and different indentation methods are compliant with PEP
8 recommendations? (Select two answers.)

正解：C、D

解説：
The correct answers are B. Option B and D. Option D . Both options B and D are compliant with PEP 8 recommendations for line breaks and indentation. PEP 8 recommends using 4 spaces per indentation level and breaking lines before binary operators. In option B, the arguments to the print function are aligned with the opening delimiter, which is another acceptable way to format long lines according to PEP 8. In option D, the second line is indented by 4 spaces to distinguish it from the next logical line.

質問 # 70
Select the true statement about PEP 8 recommendations related to line breaks and binary operators.

A. It is recommended that you use line breaks after binary operators to improve code readability.
B. There is no specific PEP 8 recommendation related to using line breaks with binary operators.
C. It is recommended that you use line breaks before binary operators to improve code readability.
D. It is permissible to use line breaks before or after a binary operator as long as the convention is consistent locally However, for new code it is recommended that break lines should be used only after binary operators.

正解：C

解説：
Explanation
According to PEP 8, Python's official style guide, line breaks before binary operators produce more readable code, especially in code blocks with long expressions. This is stated in several sources (1,2,6,8) and is a widely accepted convention.
References:
* https://www.python.org/dev/peps/pep-0008/#should-a-line-break-before-or-after-a-binary-operator
* https://stackoverflow.com/questions/30614124/are-long-lines-broken-up-before-or-after-binary-operators-
* https://www.quora.com/What-is-PEP-8-Python
* https://www.techbeamers.com/python-tutorial-pep-8/
* https://www.section.io/engineering-education/python-coding-conventions-guidelines-for-python-programm
* https://towardsdatascience.com/a-step-in-pep8-style-guide-improving-the-readability-of-the-code-8114fd4
* https://www.codementor.io/@rishikeshdhokare/python-coding-style-best-practices-that-every-python-prog
* https://www.dataschool.io/python-pep8-tips-and-tricks/

質問 # 71
Select the true statements about the sqirte3 module. (Select two answers.)

A. The fetchall method returns an empty list when no rows are available
B. The sqlite3 module provides an interface compliant with the DB-API 2.0.
C. The sqhte3 module does not support transactions.
D. The special name memory is used to create a database in RAM.

正解：B、D

解説：
A). 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.
B). 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.
Reference: Official Python documentation on sqlite3: https://docs.python.org/3/library/sqlite3.html

質問 # 72
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