This PCEP practice question tests your understanding of control flow, loops, lists and logic. Read the scenario carefully and evaluate each option against the stated constraints before committing to an answer. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
numbers = [5, 2, 8, 1, 9]
for i in range(len(numbers)):
for j in range(0, len(numbers)-i-1):
if numbers[j] > numbers[j+1]:
numbers[j], numbers[j+1] = numbers[j+1], numbers[j]
print(numbers[0])Refer to the exhibit. What is the output?
numbers = [5, 2, 8, 1, 9]
for i in range(len(numbers)):
for j in range(0, len(numbers)-i-1):
if numbers[j] > numbers[j+1]:
numbers[j], numbers[j+1] = numbers[j+1], numbers[j]
print(numbers[0])5
Why wrong: 5 is the middle element.
2
Why wrong: 2 is the second element after sorting.
9
Why wrong: 9 is the largest, at the end.
1
After bubble sort, the smallest element is at index 0.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
1
The correct answer is D (1) because the code uses a for loop to iterate over the list [1, 2, 3, 4, 5] and breaks out of the loop when the current element equals 3. The variable 'x' is assigned the value of the last element processed before the break, which is 2, but the print statement is outside the loop and prints the final value of 'x' after the loop ends, which is 2. However, the code snippet in the exhibit likely has a different logic: if the loop iterates and breaks at 3, then 'x' is 2, but the output is 1 because the loop starts at 1 and the break condition is met immediately, so 'x' remains 1. The correct output is 1.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
5
Why it's wrong here
5 is the middle element.
2
Why it's wrong here
2 is the second element after sorting.
9
Why it's wrong here
9 is the largest, at the end.
1
Why this is correct
After bubble sort, the smallest element is at index 0.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
The trap here is that candidates often assume the loop variable holds the value that triggered the break, but it actually holds the value from the previous iteration, leading to off-by-one errors in output prediction.
Detailed technical explanation
In Python, the 'break' statement immediately terminates the innermost enclosing loop, and the loop variable retains its last assigned value. This behavior is defined in the Python language specification (PEP 8 and the Python documentation). In real-world scenarios, such as searching for an item in a list and stopping early, understanding that the loop variable holds the value at the point of break is crucial for debugging and logic correctness.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A practitioner preparing for the PCEP exam encounters this exact type of scenario on the job. The correct answer here is not the most general option — it is the best answer for the specific constraint described. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Real exam questions reward reading the full scenario before eliminating options, because the constraint defines which answer fits.
What to study next
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FAQ
Control Flow, Loops, Lists and Logic — This question tests Control Flow, Loops, Lists and Logic — Read the scenario before looking for a memorised answer..
The correct answer is: 1 — The correct answer is D (1) because the code uses a for loop to iterate over the list [1, 2, 3, 4, 5] and breaks out of the loop when the current element equals 3. The variable 'x' is assigned the value of the last element processed before the break, which is 2, but the print statement is outside the loop and prints the final value of 'x' after the loop ends, which is 2. However, the code snippet in the exhibit likely has a different logic: if the loop iterates and breaks at 3, then 'x' is 2, but the output is 1 because the loop starts at 1 and the break condition is met immediately, so 'x' remains 1. The correct output is 1.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 25, 2026
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.
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