EX294 Implement advanced Ansible automation Practice Question
This EX294 practice question tests your understanding of implement advanced ansible automation. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. 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 playbook uses the 'include_tasks' module to dynamically include tasks based on a variable. The playbook runs successfully on some hosts but fails on others with a 'template error' message. What is the most likely cause?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue: "most likely"
Why it matters: Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The variable used in the 'include_tasks' path has a Jinja2 template error.
The 'include_tasks' module dynamically resolves the path to a task file using a variable. If that variable contains a Jinja2 template error (e.g., undefined variable, syntax mistake, or filter misuse), Ansible will fail with a 'template error' message during the variable expansion phase, before the task file is even loaded. This explains why the error occurs only on hosts where the variable's value or context triggers the template failure.
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.
✗
The included task file does not exist on the control node.
Why it's wrong here
Missing file causes a 'file not found' error.
✓
The variable used in the 'include_tasks' path has a Jinja2 template error.
Why this is correct
Template errors occur when Jinja2 syntax is invalid.
Clue confirmation
The clue word "most likely" in the question point toward this answer.
Related concept
Read the scenario before looking for a memorised answer.
✗
The included task file has incorrect permissions.
Why it's wrong here
File permissions do not produce template errors.
✗
The included tasks contain a syntax error.
Why it's wrong here
A syntax error would be reported as a YAML or Ansible syntax error, not a template error.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse the source of the template error, assuming it comes from the content of the included tasks (option D) rather than from the variable used in the include path itself, which is evaluated before the included file is even accessed.
Detailed technical explanation
How to think about this question
Under the hood, 'include_tasks' uses the Ansible templating engine (Jinja2) to evaluate the 'file' parameter. If the variable expression contains an undefined variable (e.g., '{{ my_var }}' when 'my_var' is not defined for a particular host), Jinja2 raises a 'TemplateSyntaxError' or 'UndefinedError', which Ansible surfaces as a 'template error'. This is distinct from errors in the included file's content, which are caught later during task parsing. In real-world scenarios, this often happens when a host-specific fact or group variable used in the include path is missing or misspelled for certain hosts.
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 small business has 20 workstations on the 192.168.1.0/24 network and one public IP from its ISP. The router uses PAT (NAT overload) so all 20 devices share one public address using different source ports. NAT questions test whether you understand the four address terms and which direction each translation applies.
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.
Implement advanced Ansible automation — This question tests Implement advanced Ansible automation — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: The variable used in the 'include_tasks' path has a Jinja2 template error. — The 'include_tasks' module dynamically resolves the path to a task file using a variable. If that variable contains a Jinja2 template error (e.g., undefined variable, syntax mistake, or filter misuse), Ansible will fail with a 'template error' message during the variable expansion phase, before the task file is even loaded. This explains why the error occurs only on hosts where the variable's value or context triggers the template failure.
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: "most likely". Probability qualifier — the question wants the most probable cause or outcome, not a guaranteed one. Eliminate low-probability options.
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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