A developer wants a function to increment a global counter variable `count` by 1 each time it is called. Which function definition accomplishes this?

`def increment(): return count + 1`

`def increment(count): count += 1`

`def increment(): global count count += 1`

Python InstitutePCEP - Certified Entry-Level Python Programmer

Domain 4Objective 2

PCEP-30-02 4.2 Organize Interaction Between the Function and Its Environment 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 31 practice questions to prepare you well beyond it. (estimate)

31questions here

7free pages

8concepts

28%of the exam

Questions 1–5

1expert · hard
Consider the code: ```python x = 5 def f(): global x x = 10 def g(): print(x) g() f() print(x) ``` What is the output?
Select an answer first
2expert · medium
A function is defined as `def calculate(a, b, c=0, d=0):`. Which call is valid and assigns `a=1`, `b=2`, `c=3`, `d=4`?
Select an answer first
3application · medium
A developer writes: ```python count = 0 def reset(): count = 10 reset() print(count) ``` What is printed?
Select an answer first
4foundation · easy
What is the result of this code? ```python count = 0 def increment(): global count count += 1 increment() print(count) ```
Select an answer first
5application · medium
A developer wants a function to increment a global counter variable `count` by 1 each time it is called. Which function definition accomplishes this?
Select an answer first

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PCEP-30-02 4.2 Organize Interaction Between the Function and Its Environment PCEP-30 Practice Questions (Page 1)

Questions 1–5

Consider the code: ```python x = 5 def f(): global x x = 10 def g(): print(x) g() f() print(x) ``` What is the output?

A function is defined as `def calculate(a, b, c=0, d=0):`. Which call is valid and assigns `a=1`, `b=2`, `c=3`, `d=4`?

A developer writes: ```python count = 0 def reset(): count = 10 reset() print(count) ``` What is printed?

What is the result of this code? ```python count = 0 def increment(): global count count += 1 increment() print(count) ```

A developer wants a function to increment a global counter variable `count` by 1 each time it is called. Which function definition accomplishes this?

Keep studying — Functions and Exceptions