PCEP-30-02 4.1 Decompose the Code Using Functions PCEP-30 Practice Questions (Page 4)

Questions 16–19

1. 16foundation · easy

   What is the result of the following code? def f(): return 5 print('unreachable') print(f())

   • A5
   • B5 unreachable
   • Cunreachable 5
   • Dunreachable
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2. 17expert · hard

   A developer is debugging a function that is supposed to return a discount rate based on a customer tier. The function is: def get_discount(tier): if tier == 'gold': return 0.2 if tier == 'silver': return 0.1 A colleague calls `rate = get_discount('bronze')` and then uses `rate` in a calculation. What is the most likely problem?

   • Arate will be None, causing a TypeError when used in arithmetic
   • Brate will be False, so the discount is ignored
   • Crate will be 0.0, so the discount is zero
   • DThe function will raise a SyntaxError
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4. 18foundation · easy

   What is the base case in a recursive function?

   • AThe return value of the function.
   • BThe part of the function that calls itself.
   • CThe first call to the function.
   • DThe condition that stops the recursion.
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5. 19foundation · easy

   What is the purpose of the colon (:) at the end of a def statement in Python?

   • AIt indicates that the indented block that follows is the function body.
   • BIt tells Python to return the value of the last expression.
   • CIt separates the function name from the parameter list.
   • DIt marks the end of the function definition.
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