PCPP-32-101 1.1 Understand and Explain the Basic Terms and Programming Concepts Used in the OOP Paradigm PCPP-32-1 Practice Questions (Page 4)

Questions 16–20

1. 16foundation · easy

   What is a method in object-oriented programming?

   • AA special syntax for creating new classes
   • BA variable that stores data for an object
   • CA function defined inside a class that operates on instances or the class itself
   • DA reference to the class from which an object was created
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2. 17foundation · easy

   How do you access a class variable from an instance method?

   • AUsing the `self` keyword followed by the variable name
   • BUsing the class name followed by the variable name
   • CUsing the `global` keyword
   • DUsing the `cls` keyword
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4. 18foundation · easy

   What is the purpose of the `isinstance()` function?

   • ATo get the memory address of an object
   • BTo convert an object to a different type
   • CTo check if a class is a subclass of another class
   • DTo check if an object is an instance of a specified class
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5. 19application · medium

   A developer has a `Config` class with a class variable `debug = False`. They create `c1 = Config()` and `c2 = Config()`. Then they run `c1.debug = True`. What is the value of `c2.debug`?

   • A`False`
   • B`None`
   • CRaises `AttributeError`
   • D`True`
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6. 20foundation · easy

   What is the primary purpose of the `__init__()` method?

   • ATo define class variables
   • BTo delete an object from memory
   • CTo initialize instance attributes when an object is created
   • DTo return a string representation of the object
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