EX294 Transform data with filters and plugins Practice Question
This EX294 practice question tests your understanding of transform data with filters and plugins. 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.
Exhibit
Refer to the exhibit.
```yaml
- name: Transform data
hosts: localhost
vars:
raw_data:
- " apple "
- "BANANA"
- " cherry "
tasks:
- name: Clean and normalize
set_fact:
clean_list: "{{ raw_data | map('trim') | map('lower') | list }}"
```
Refer to the exhibit. After running the playbook, what is the value of 'clean_list'?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
['apple', 'banana', 'cherry']
Option B is correct because the `lower` filter converts all strings to lowercase, and the `map('trim')` filter removes leading and trailing whitespace from each element. The playbook applies these filters sequentially to the `fruits` list, resulting in `['apple', 'banana', 'cherry']`.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✗
[' apple ', 'BANANA', ' cherry ']
Why it's wrong here
This is the original raw_data without transformation.
✓
['apple', 'banana', 'cherry']
Why this is correct
Trimmed and lowercased correctly.
Related concept
Read the scenario before looking for a memorised answer.
✗
[' apple ', 'banana', ' cherry ']
Why it's wrong here
Only 'lower' applied, not 'trim'.
✗
['APPLE', 'BANANA', 'CHERRY']
Why it's wrong here
Has uppercase, but trim was applied; order of filters is trim then lower, not upper.
Common exam traps
Common exam trap: answer the scenario, not the keyword
Red Hat often tests the order of filter application and the scope of `map` — candidates may mistakenly think `map('trim')` only affects the first element or that `lower` applies after trimming, leading to incorrect whitespace or case handling.
Detailed technical explanation
How to think about this question
The `map` filter in Ansible applies a specified filter to each element of a list, and when combined with `lower`, it ensures case-insensitive normalization. The `trim` filter removes whitespace from both ends of a string, which is critical when data sources like CSV files or user input include inconsistent spacing. In real-world automation, this pattern is used to sanitize inventory lists or configuration parameters before comparison or further processing.
KKey Concepts to Remember
Read the scenario before looking for a memorised answer.
Find the constraint that changes the correct option.
Eliminate answers that are true in general but not in this case.
TExam Day Tips
→Watch for words such as best, first, most likely and least administrative effort.
→Review why wrong options are wrong, not only why the correct option is correct.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
How this comes up in practice
A practitioner preparing for the EX294 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
Got this wrong? Here's your next step.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Transform data with filters and plugins — This question tests Transform data with filters and plugins — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: ['apple', 'banana', 'cherry'] — Option B is correct because the `lower` filter converts all strings to lowercase, and the `map('trim')` filter removes leading and trailing whitespace from each element. The playbook applies these filters sequentially to the `fruits` list, resulting in `['apple', 'banana', 'cherry']`.
What should I do if I get this EX294 question wrong?
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
What is the key concept behind this question?
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 →
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.
This EX294 practice question is part of Courseiva's free Red Hat 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 EX294 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.