- A
ansible-navigator run -m stdout --ce docker --container-image registry.example.com/custom-ee --container-auth-file auth.json
Correct: --container-auth-file specifies the authentication file for registry access.
- B
ansible-navigator run -m stdout --ce docker --container-image registry.example.com/custom-ee --container-auth-file credentials.yml
Why wrong: The authentication file should be in JSON format (like auth.json), not YAML. Also, credentials.yml is not a standard name for registry auth.
- C
ansible-navigator run --pp never --ce docker --container-image registry.example.com/custom-ee
Why wrong: Missing --container-auth-file; without authentication, pulling the image will fail.
- D
ansible-navigator run -m stdout --pp never --ce docker --container-image registry.example.com/custom-ee --container-credential-file credentials.yml
Why wrong: --container-credential-file is not a valid option; ansible-navigator uses --container-auth-file.
Execution Environment — Container Authentication
This EX294 practice question tests your understanding of manage task execution and roles. This is a configuration task: choose the command set that satisfies every stated requirement. Small differences — like 'secret' vs 'password' or 'transport input ssh' vs 'all' — change whether the answer is correct. 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 DevOps engineer wants to run an Ansible playbook inside a specific execution environment (EE) that includes custom collections. The EE image is stored in a private registry requiring authentication. The engineer has configured a container credential file. Which command will execute the playbook using the EE and the credential file?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue:
"which command"Why it matters: Tests specific CLI syntax. Recall the exact command and its required context — near-synonyms and partial matches are common distractors.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
ansible-navigator run -m stdout --ce docker --container-image registry.example.com/custom-ee --container-auth-file auth.json
Option A is correct because `ansible-navigator` uses the `--container-auth-file` flag to specify a container credential file (typically in JSON format) for authenticating to a private registry. The `-m stdout` flag sets the execution mode to stdout, and `--ce docker` selects Docker as the container engine. This command correctly references the EE image and the auth file, enabling the playbook to run inside the authenticated custom execution environment.
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.
- ✓
ansible-navigator run -m stdout --ce docker --container-image registry.example.com/custom-ee --container-auth-file auth.json
Why this is correct
Correct: --container-auth-file specifies the authentication file for registry access.
Clue confirmation
The clue word "which command" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
- ✗
ansible-navigator run -m stdout --ce docker --container-image registry.example.com/custom-ee --container-auth-file credentials.yml
Why it's wrong here
The authentication file should be in JSON format (like auth.json), not YAML. Also, credentials.yml is not a standard name for registry auth.
- ✗
ansible-navigator run --pp never --ce docker --container-image registry.example.com/custom-ee
Why it's wrong here
Missing --container-auth-file; without authentication, pulling the image will fail.
- ✗
ansible-navigator run -m stdout --pp never --ce docker --container-image registry.example.com/custom-ee --container-credential-file credentials.yml
Why it's wrong here
--container-credential-file is not a valid option; ansible-navigator uses --container-auth-file.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates confuse `--container-auth-file` (the correct flag for a JSON auth file) with `--container-credential-file` (a nonexistent flag) or assume YAML is acceptable, leading them to pick options B or D.
Detailed technical explanation
How to think about this question
Under the hood, `ansible-navigator` uses the container engine (Docker or Podman) to pull the EE image. The `--container-auth-file` flag points to a JSON file typically located at `~/.docker/config.json` or generated by `podman login --authfile`. This file contains base64-encoded registry credentials. In real-world CI/CD pipelines, the auth file is often mounted as a secret, and using the wrong flag or format causes authentication failures that prevent the EE from being pulled.
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.
- →
Manage task execution and roles — study guide chapter
Learn the concepts, then practise the questions
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FAQ
Questions learners often ask
What does this EX294 question test?
Manage task execution and roles — This question tests Manage task execution and roles — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: ansible-navigator run -m stdout --ce docker --container-image registry.example.com/custom-ee --container-auth-file auth.json — Option A is correct because `ansible-navigator` uses the `--container-auth-file` flag to specify a container credential file (typically in JSON format) for authenticating to a private registry. The `-m stdout` flag sets the execution mode to stdout, and `--ce docker` selects Docker as the container engine. This command correctly references the EE image and the auth file, enabling the playbook to run inside the authenticated custom execution environment.
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: "which command". Tests specific CLI syntax. Recall the exact command and its required context — near-synonyms and partial matches are common distractors.
What is the key concept behind this question?
Read the scenario before looking for a memorised answer.
About these practice questions
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Last reviewed: Jul 4, 2026
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