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.
Which file is required to define the content of an Ansible execution environment when using ansible-builder?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
execution-environment.yml
The `execution-environment.yml` file is the required definition file for `ansible-builder` because it specifies the base image, custom dependencies (Python, system, or collections), and additional build instructions needed to construct a containerized Ansible execution environment. Without this file, `ansible-builder` has no manifest to process, as it is the sole input that defines the environment's content.
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.
✗
Dockerfile
Why it's wrong here
Dockerfile is generated by ansible-builder, not the input definition.
✗
requirements.yml
Why it's wrong here
requirements.yml lists Ansible collections but is used within execution-environment.yml, not as the primary definition.
✗
ansible.cfg
Why it's wrong here
ansible.cfg is for Ansible configuration, not execution environment definition.
✓
execution-environment.yml
Why this is correct
execution-environment.yml is the required file that defines the base image, collections, and dependencies.
Related concept
Read the scenario before looking for a memorised answer.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates confuse the generated `Dockerfile` (an output artifact) with the required input file, or they assume `requirements.yml` is the main definition because it is commonly used for collection installation in playbooks, but `ansible-builder` specifically requires `execution-environment.yml` as the blueprint.
Detailed technical explanation
How to think about this question
Under the hood, `ansible-builder` parses `execution-environment.yml` to construct a multi-stage build: it selects a base image (e.g., `quay.io/ansible/ansible-runner`), installs system packages via `dependencies: system`, Python packages via `dependencies: python`, and Ansible collections via `dependencies: galaxy`. The builder then generates a `Dockerfile` and `context/` directory, which can be inspected with `ansible-builder build --verbosity 3` for debugging. A real-world scenario is when a team needs a custom execution environment with a specific database driver (e.g., `psycopg2-binary`) and a private collection; they define these in `execution-environment.yml` and run `ansible-builder build` to produce a consistent, version-controlled container image for CI/CD pipelines.
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: execution-environment.yml — The `execution-environment.yml` file is the required definition file for `ansible-builder` because it specifies the base image, custom dependencies (Python, system, or collections), and additional build instructions needed to construct a containerized Ansible execution environment. Without this file, `ansible-builder` has no manifest to process, as it is the sole input that defines the environment's content.
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.
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Question Discussion
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