Quick Answer
The answer is 'a b c' because the `join()` method concatenates the list elements `['a', 'b', 'c']` using a space as the separator, producing the string `a b c`, and then `repr()` wraps that string in quotes for its official representation, so `print(repr(result))` outputs `'a b c'` including the single quotes. This tests your understanding of how `join()` constructs a string from an iterable and how `repr()` differs from `str()` by returning a developer-friendly, unambiguous output that often includes quotes. On the PCAP exam, this is a classic trap: many candidates forget that `repr()` adds quotes, so they mistakenly choose `a b c` without quotes. The search intent "join method repr output" highlights exactly this nuance—you must distinguish between the string value and its representation. Memory tip: think of `repr()` as the "report" that shows exactly how Python sees the data, quotes and all.
This PCAP practice question tests your understanding of strings. 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.
Consider the following code: result = ' '.join(['a', 'b', 'c'])
print(repr(result))
What is the output?
['a', 'b', 'c']
Why wrong: This is the list representation, not the result.
"a b c"
Why wrong: Double quotes are not used by repr() for single-quoted strings.
'a b c'
Correct representation with single quotes.
a b c
Why wrong: Missing quotes; repr() always includes quotes.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
'a b c'
The `join()` method concatenates the list elements with a space separator, producing the string `'a b c'`. The `repr()` function returns a string representation that includes quotes, so the output is `'a b c'` (with single quotes). Option C is correct because it matches the exact output of `print(repr(result))`.
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.
['a', 'b', 'c']
Why it's wrong here
This is the list representation, not the result.
"a b c"
Why it's wrong here
Double quotes are not used by repr() for single-quoted strings.
'a b c'
Why this is correct
Correct representation with single quotes.
Related concept
Read the scenario before looking for a memorised answer.
a b c
Why it's wrong here
Missing quotes; repr() always includes quotes.
Common exam traps
Python Institute often tests the difference between `str()` and `repr()`, and the trap here is that candidates forget `repr()` adds quotes to the string output, leading them to choose the unquoted version (Option D) or the wrong quote style (Option B).
Detailed technical explanation
The `repr()` function is designed to return an unambiguous representation of an object, often used for debugging. For strings, it wraps the content in quotes and escapes special characters (e.g., newlines become `\n`). In contrast, `str()` returns a human-readable representation without quotes. This distinction is critical when logging or serializing data, as `repr()` ensures the output can be used to reconstruct the object.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
A cloud solutions architect for a retail company is evaluating services for a new workload. The correct answer here reflects best practice for the specific scenario described — not a general cloud recommendation. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Cloud exam questions reward reading the constraint carefully: the same technology can be right or wrong depending on the use case.
What to study next
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Strings — study guide chapter
Learn the concepts, then practise the questions
Strings practice questions
Targeted practice on this topic area only
All PCAP questions
511 questions across all exam domains
Certified Associate Python Programmer PCAP study guide
Full concept coverage aligned to exam objectives
PCAP practice test guide
How to use practice tests most effectively before exam day
Related practice questions
Use these pages to review the topic behind this question. This is how one missed question becomes focused revision.
Practise PCAP questions linked to Modules and Packages.
Practise PCAP questions linked to Strings.
Practise PCAP questions linked to Object-Oriented Programming.
Practise PCAP questions linked to Exceptions and File I/O.
Practise PCAP questions linked to PCAP fundamentals.
Practise PCAP questions linked to PCAP scenario.
Practise PCAP questions linked to PCAP troubleshooting.
Practice this exam
Short sessions build daily habit. Longer sessions build exam-day stamina. Try a timed session to simulate real conditions.
FAQ
Strings — This question tests Strings — Read the scenario before looking for a memorised answer..
The correct answer is: 'a b c' — The `join()` method concatenates the list elements with a space separator, producing the string `'a b c'`. The `repr()` function returns a string representation that includes quotes, so the output is `'a b c'` (with single quotes). Option C is correct because it matches the exact output of `print(repr(result))`.
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.
About these practice questions
Courseiva creates original exam-style practice questions with explanations and wrong-answer analysis. It does not publish real exam questions, exam dumps, or protected exam content. Learn why practice questions differ from exam dumps →
Keep practising
Last reviewed: Jun 30, 2026
This PCAP 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 PCAP exam.
Question Discussion
Share a tip, memory trick, or ask about the reasoning behind this question. Do not post real exam questions, leaked content, braindumps, or copyrighted exam material. Comments are moderated and may be removed without notice.
Sign in to join the discussion.