A developer is writing a library function `read_config()` that may raise FileNotFoundError or PermissionError. The library should not handle these exceptions. What is the best approach?

Let the exceptions propagate and document them

Catch both exceptions and re-raise a generic Exception

Catch both exceptions and print a warning

Catch both exceptions and return an empty dictionary

A developer is writing a module that provides a `connect()` function. The module should not decide how connection errors are handled; the calling application should. What is the best approach?

Catch exceptions in `connect()` and log them

Catch exceptions and re-raise a custom exception

Catch all exceptions in `connect()` and return False on failure

Let `connect()` raise exceptions and let the caller catch them

A function `validate()` raises a TypeError. It is called by `check()`, which does not catch it. `check()` is called from a script that has no try-except. What is the result?

The exception is caught by the Python interpreter and logged

The exception is caught by `check()`

The exception is silently ignored

The program terminates with an unhandled exception

A function `inner()` raises a ValueError. It is called by `outer()`, which does not catch it. `outer()` is called from the main script, which has a try-except block. Where is the exception handled?

In the main script's try-except block

Python InstitutePCEP - Certified Entry-Level Python Programmer

Domain 4Objective 4

PCEP-30-02 4.4 Basics of Python Exception Handling PCEP-30 Practice Questions (Page 1)

Part of the Functions and Exceptions domain, which accounts for 28% of the PCEP-30 exam. Python Institute does not publish an official question count, but from its 45-minute exam (~20–30 total, ~6–8 in this domain), expect 2–2 from this objective — we provide 13 practice questions to prepare you well beyond it. (estimate)

13questions here

3free pages

5concepts

28%of the exam

Questions 1–5

1application · medium
A developer is writing a library function `read_config()` that may raise FileNotFoundError or PermissionError. The library should not handle these exceptions. What is the best approach?
Select an answer first
2application · medium
A developer is writing a module that provides a `connect()` function. The module should not decide how connection errors are handled; the calling application should. What is the best approach?
Select an answer first
3application · easy
A function `divide(a, b)` performs division. The caller wants to handle the case where the divisor is zero, but let other errors propagate. Which except clause should be used inside the function?
Select an answer first
4application · easy
A function `validate()` raises a TypeError. It is called by `check()`, which does not catch it. `check()` is called from a script that has no try-except. What is the result?
Select an answer first
5application · easy
A function `inner()` raises a ValueError. It is called by `outer()`, which does not catch it. `outer()` is called from the main script, which has a try-except block. Where is the exception handled?
Select an answer first

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