PCEP Control Flow, Loops, Lists and Logic Practice Question
A developer writes code to iterate over a list and break when a certain condition is met. Which keyword is used to exit the loop prematurely?
⚠ Common exam trap
Python Institute often tests the distinction between `break` and `continue`, where candidates mistakenly think `continue` can exit a loop, but it only skips the current iteration and proceeds to the next one.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
break
The `break` keyword is used in Python to immediately exit the nearest enclosing loop (for or while) when a specified condition is met, allowing the program to resume execution at the next statement after the loop. This is the standard mechanism for premature loop termination in Python, as defined in the language specification.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
break
Why this is correct
The break statement immediately terminates the innermost enclosing loop, transferring control to the first statement after it. This matches the stem's requirement to exit prematurely once a condition is met, unlike continue, which skips only the current iteration.
- ✗
stop
Why it's wrong here
stop is not a Python keyword and raises a NameError when executed, so it cannot terminate loop iteration. It is tempting because the word describes the intended behaviour in plain English, yet Python reserves break for exiting the nearest enclosing loop immediately.
- ✗
exit
Why it's wrong here
exit is not a Python keyword; it is a helper object supplied by the site module for interactive sessions, so using it inside a script raises a NameError rather than terminating iteration. It is tempting because it appears to quit the interpreter interactively, which is unrelated to breaking out of a loop.
- ✗
continue
Why it's wrong here
continue skips the remaining statements of the current iteration and proceeds to the next item, leaving the loop running, so it never exits prematurely. It is tempting because both keywords alter loop flow, but continue is correct when filtering items rather than stopping iteration entirely.
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Senior Network & Security Engineer · founder of Courseiva
This PCEP practice question is part of Courseiva's free Python Institute certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the PCEP exam.