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.
An Ansible role is designed to work on both RHEL 7 and RHEL 8 systems. The role uses the 'redhat_subscription' module. However, on RHEL 8, the module requires a different parameter name. The developer wants to use a conditional parameter based on the OS version. Which filter allows checking the operating system version from 'ansible_facts'?
int
Why wrong: int converts to integer, but version strings like '7.9' would lose precision.
version
The 'version' filter allows comparing version strings like '8.0'.
sys.version
Why wrong: sys is not an Ansible filter; it's not available.
bool
Why wrong: bool converts to true/false, not suitable for version comparison.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
version
The correct answer is B, 'version', because the `version` filter in Ansible is specifically designed to compare version strings from `ansible_facts` (e.g., `ansible_facts['ansible_distribution_version']`). It allows conditional logic based on OS version, such as checking if the version is '8.0' or higher, which is exactly what the developer needs to handle the different parameter names for the `redhat_subscription` module between RHEL 7 and RHEL 8.
Key principle: Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Answer analysis
For each option: why learners choose it and why it is or isn't the right answer here.
int
Why it's wrong here
int converts to integer, but version strings like '7.9' would lose precision.
version
Why this is correct
The 'version' filter allows comparing version strings like '8.0'.
Related concept
Read the scenario before looking for a memorised answer.
sys.version
Why it's wrong here
sys is not an Ansible filter; it's not available.
bool
Why it's wrong here
bool converts to true/false, not suitable for version comparison.
Common exam traps
The trap here is that candidates confuse the `version` filter with Python's `sys.version` or generic type conversion filters like `int` or `bool`, failing to recognize that Ansible provides a dedicated filter for semantic version comparison.
Detailed technical explanation
The `version` filter in Ansible uses the `distutils.version.LooseVersion` or `StrictVersion` under the hood to parse and compare version strings, allowing operators like `>=`, `<`, and `==`. In a real-world scenario, you might use it in a task like `when: ansible_facts['ansible_distribution_version'] is version('8.0', '>=')` to conditionally set the `activationkey` parameter for RHEL 8, while using the older `pool` parameter for RHEL 7. This filter is part of Ansible's `jinja2` extensions and is critical for writing idempotent roles that support multiple OS versions.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
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
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FAQ
Transform data with filters and plugins — This question tests Transform data with filters and plugins — Read the scenario before looking for a memorised answer..
The correct answer is: version — The correct answer is B, 'version', because the `version` filter in Ansible is specifically designed to compare version strings from `ansible_facts` (e.g., `ansible_facts['ansible_distribution_version']`). It allows conditional logic based on OS version, such as checking if the version is '8.0' or higher, which is exactly what the developer needs to handle the different parameter names for the `redhat_subscription` module between RHEL 7 and RHEL 8.
Identify which exam domain this question belongs to, review the core concept, then practise similar questions from the same domain.
Read the scenario before looking for a memorised answer.
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Last reviewed: Jun 25, 2026
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