PCAP-31-03 4.6 Construct and Initialize Objects PCAP-31 Practice Questions (Page 2)

Questions 6–10

1. 6foundation · easy

   In the constructor of a Python class, what does the 'self' parameter refer to?

   • AThe constructor method itself.
   • BThe class itself.
   • CThe module in which the class is defined.
   • DThe instance of the class that is being created.
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2. 7foundation · easy

   Which code snippet correctly uses self to bind an instance attribute in a constructor?

   • Adef __init__(self, value): self.value = value
   • Bdef __init__(self, value): self.value = self
   • Cdef __init__(self, value): self = value
   • Ddef __init__(self, value): value = value
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4. 8foundation · easy

   Consider the following class: class Book: def __init__(self, title, author): self.title = title self.author = author What is the initial state of a Book object created with Book('1984', 'George Orwell')?

   • AThe object has attributes title=None and author=None.
   • BThe object has attributes title='George Orwell' and author='1984'.
   • CThe object has no attributes until they are set later.
   • DThe object has attributes title='1984' and author='George Orwell'.
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5. 9foundation · easy

   What is the effect of passing arguments to a class constructor in Python?

   • AThe arguments are used to define new methods on the class.
   • BThe arguments are ignored and the object is created with default values.
   • CThe arguments are used to create a new class each time.
   • DThe arguments are used to initialize the instance attributes of the new object.
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6. 10foundation · easy

   What is true about a class that does not define an __init__ method?

   • AIt has a constructor that takes one required argument.
   • BIt cannot be instantiated.
   • CIt raises an error when you try to create an instance.
   • DIt has a default constructor that takes no arguments.
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