PCEP-30-02 4.4 Basics of Python Exception Handling PCEP-30 Practice Questions (Page 3)

Questions 11–13

1. 11application · medium

   A developer writes a try block that may raise either a ValueError or a TypeError. They want to handle ValueError with a specific message and any other exception with a generic message. Which except clause order is correct?

   • Aexcept: ... except ValueError: ...
   • Bexcept Exception: ... except ValueError: ...
   • Cexcept TypeError: ... except ValueError: ...
   • Dexcept ValueError: ... except Exception: ...
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2. 12foundation · medium

   What is the purpose of the try-except block in Python?

   • ATo prevent any exception from being raised
   • BTo catch and handle exceptions that occur during execution
   • CTo optimize code execution speed
   • DTo define a new exception type
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3. 13application · medium

   A library function `parse_data(data)` is designed to be used by multiple callers. The library author wants to let each caller decide how to handle errors. What is the best design?

   • ACatch exceptions and re-raise them as a generic Exception
   • BCatch exceptions and print an error message
   • CCatch all exceptions inside `parse_data` and return None on error
   • DLet exceptions propagate and document the possible exception types
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