PCPP-32-101 1.4 Understand Extended Function Argument Syntax and Use Decorators PCPP-32-1 Practice Questions (Page 6)

Questions 26–30

1. 26foundation · easy

   When a class is used as a decorator, what does the __call__ method do?

   • AIt deletes the function from memory
   • BIt defines the behavior when the decorated function is called
   • CIt returns the original function unchanged
   • DIt initializes the class instance
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2. 27foundation · easy

   What is a closure in Python?

   • AA nested function that captures variables from its enclosing scope
   • BA function that has no arguments
   • CA function that returns another function
   • DA function that closes over global variables only
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4. 28foundation · easy

   In a class-based decorator, what is typically stored in __init__?

   • AThe arguments passed to the decorated function
   • BThe function being decorated
   • CThe return value of the decorated function
   • DThe decorator's name
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5. 29foundation · easy

   What is a function decorator in Python?

   • AA function that modifies the Python interpreter
   • BA function that is called automatically at program start
   • CA function that only works with classes
   • DA function that takes a function and returns a new function
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6. 30foundation · easy

   Which two special methods are typically defined in a class that is used as a decorator?

   • A__new__ and __init__
   • B__init__ and __call__
   • C__call__ and __str__
   • D__init__ and __del__
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