PCEP-30-02 4.2 Organize Interaction Between the Function and Its Environment PCEP-30 Practice Questions (Page 3)

Questions 11–15

1. 11application · medium

   What is the output of the following code? ```python def outer(): x = 1 def inner(): print(x) inner() outer() ```

   • A`UnboundLocalError`
   • B`None`
   • C`NameError`
   • D`1`
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2. 12foundation · easy

   Given `def describe(animal, sound):`, which call correctly passes arguments by position?

   • Adescribe(sound='meow', animal='cat')
   • Bdescribe(animal='cat', sound='meow')
   • Cdescribe('cat', 'meow')
   • Ddescribe('meow', 'cat')
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4. 13application · medium

   A developer wants to modify a global variable `score` inside a function. Which code snippet correctly increments `score` by 1?

   • A`def add_score(): global score score += 1`
   • B`def add_score(): return score + 1`
   • C`def add_score(score): score += 1`
   • D`def add_score(): score += 1`
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5. 14foundation · easy

   What is a local variable in a function?

   • AA variable that stores the function's return value.
   • BA variable that can only be used once.
   • CA variable defined outside the function that is accessible everywhere.
   • DA variable defined inside the function that is only accessible within it.
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6. 15application · easy

   A function `def greet(name, greeting='Hello'):` is called as `greet('Alice')`. What is the value of `greeting` inside the function?

   • A`None`
   • B`'Hello'`
   • CThis raises a `TypeError`
   • D`'Alice'`
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