EX294 Practice Question: Create content collections and execution environments
This EX294 practice question tests your understanding of create content collections and execution environments. 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.
A team is setting up an Ansible execution environment that requires a specific version of a Python library that is not available in the default base image. The team wants to minimize the size of the final container. Which approach should they take in the execution-environment.yml file?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "minimum / minimize"
Why it matters: Asks for the least resource use — fewest addresses, smallest subnet, lowest overhead. Eliminate over-provisioned options even if they would technically work.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Use the 'dependencies' key with 'python' to specify the library and version.
Option C is correct because the `dependencies` key in `execution-environment.yml` allows specifying Python libraries and their versions under the `python` subkey. Ansible Builder will then install these dependencies during the build process, ensuring the required library is available without bloating the final container with unnecessary layers or manual RUN commands.
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.
✗
Use the 'additional_build_steps' key to add a RUN command that installs the library via pip.
Why it's wrong here
Incorrect. While this works, it adds an extra layer and is less optimized than using 'dependencies'.
✗
Use the 'base_image' key to point to a custom image that already contains the library.
Why it's wrong here
Incorrect. A custom base image may be larger due to other packages, negating size minimization.
✓
Use the 'dependencies' key with 'python' to specify the library and version.
Why this is correct
Correct. This allows ansible-builder to handle installation efficiently and minimize image size.
Clue confirmation
The clue word "minimum / minimize" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
Use the 'galaxy' key to install the library from a collection.
Why it's wrong here
Incorrect. The 'galaxy' key is for collections, not Python packages.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates confuse the `dependencies` key for Python libraries with the `galaxy` key for Ansible collections, or assume that `additional_build_steps` is the only way to install custom packages, ignoring the built-in Python dependency support.
Detailed technical explanation
How to think about this question
Ansible Builder uses a multi-stage build process where the `dependencies` key with `python` injects a `requirements.txt` file into the build context, and pip installs the packages in a single layer. This leverages Docker's layer caching and minimizes image size by avoiding intermediate layers from manual RUN commands. In real-world scenarios, specifying exact versions (e.g., `boto3>=1.26.0`) ensures reproducibility across environments.
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.
Create content collections and execution environments — This question tests Create content collections and execution environments — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Use the 'dependencies' key with 'python' to specify the library and version. — Option C is correct because the `dependencies` key in `execution-environment.yml` allows specifying Python libraries and their versions under the `python` subkey. Ansible Builder will then install these dependencies during the build process, ensuring the required library is available without bloating the final container with unnecessary layers or manual RUN commands.
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.
Are there clue words in this question I should notice?
Yes — watch for: "minimum / minimize". Asks for the least resource use — fewest addresses, smallest subnet, lowest overhead. Eliminate over-provisioned options even if they would technically work.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
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Question Discussion
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