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 3)

Questions 11–15

1. 11application · easy

   A developer is debugging code and needs to confirm that a variable `x` holds a list. Which expression reliably reveals the type of `x`?

   • A`x.__class__`
   • B`type(x)`
   • C`dir(x)`
   • D`isinstance(x, list)`
   Reveal Solution Discussion Select an answer first
2. 12foundation · easy

   In object-oriented programming, what is an attribute?

   • AA data field associated with an object or a class
   • BA reference to the class from which an object was created
   • CA function defined inside a class that operates on instances
   • DA special method called when an object is created
   Reveal Solution Discussion Select an answer first
4. 13foundation · easy

   When is the `__init__()` method automatically called?

   • AWhen an object is created from the class
   • BWhen the object is deleted
   • CWhen the class is defined
   • DWhen a method is called on an object
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5. 14foundation · easy

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

   • ATo check if a class is a subclass of another class
   • BTo check if an object is an instance of a class
   • CTo create a new subclass
   • DTo get the class of an object
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6. 15foundation · easy

   How do you call an instance method on an object in Python?

   • AUsing dot notation on the object, e.g., `obj.method()`
   • BUsing the class name followed by the method name
   • CUsing the `self` keyword outside the class
   • DUsing the `call` keyword
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