PCPP-32-101 1.10 Perform Shallow and Deep Copy Operations PCPP-32-1 Practice Questions (Page 1)

Questions 1–5

1. 1foundation · easy

   Which statement about `id()` is true?

   • AIt is guaranteed to be the object's memory address
   • BIt can be used to check if two variables refer to the same object
   • CIt returns the same value for all objects with equal values
   • DIt returns a string that can be used as a dictionary key
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2. 2foundation · easy

   What does `deepcopy()` from the `copy` module do?

   • AReturns the same object without copying
   • BCopies only the first level of nested objects
   • CCreates a new object and recursively copies all nested objects
   • DCreates a new top-level object but shares nested objects
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4. 3application · medium

   A developer maintains a game state as a dictionary containing player positions (tuples) and inventory (lists). The developer needs to create a save point that can be restored later. During gameplay, the current state will be modified. Which approach ensures the save point remains unchanged?

   • Asave_point = game_state
   • Bsave_point = dict(game_state)
   • Csave_point = copy.deepcopy(game_state)
   • Dsave_point = game_state.copy()
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5. 4foundation · easy

   Given `a = [1, 2]` and `b = [1, 2]`, what is the result of `a is b`?

   • ATrue, because they have the same value
   • BFalse, because they are different objects
   • CTrue, because both are lists
   • DFalse, because lists are mutable
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6. 5application · medium

   A developer is reviewing code that checks if a function parameter was given a default sentinel value. The sentinel is defined as sentinel = object(). Which comparison correctly detects whether the caller omitted the argument?

   • Aif value is sentinel:
   • Bif id(value) == id(sentinel):
   • Cif value is None:
   • Dif value == sentinel:
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