AZ-400 Configure processes and communications Practice Question
This AZ-400 practice question tests your understanding of configure processes and communications. 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.
Your organization uses GitHub Flow with branch protections. Developers must link every pull request to an issue using a closing keyword (e.g., 'Fixes #123'). You need to enforce this linking automatically. What should you do?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Create a GitHub Actions workflow that validates the PR description contains a closing keyword.
Option A is correct because a GitHub Actions workflow can be configured to run on pull request events and parse the PR description for a closing keyword pattern (e.g., regex matching 'Fixes #\d+'). If the keyword is missing, the workflow can fail the check, blocking the merge via branch protection rules that require status checks to pass. This directly enforces the linking requirement without relying on human compliance or third-party tools.
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.
✓
Create a GitHub Actions workflow that validates the PR description contains a closing keyword.
Why this is correct
This workflow can run on pull_request and fail if no keyword found.
Related concept
Read the scenario before looking for a memorised answer.
✗
Configure an issue template with a closing keyword prompt.
Why it's wrong here
Issue templates don't enforce PR descriptions.
✗
Add a branch protection rule requiring a linked issue.
Why it's wrong here
Branch protection rules do not have a built-in option to require issue linking in PR descriptions.
✗
Use a required status check from a third-party app.
Why it's wrong here
It's possible but not the simplest first-party solution.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse the 'Require a linked issue' branch protection rule (which only enforces a UI-based link) with the need to validate the PR description text for a closing keyword, leading them to incorrectly select option C.
Detailed technical explanation
How to think about this question
Under the hood, GitHub Actions workflows use the `pull_request` event trigger and can access the PR body via `github.event.pull_request.body`. A step can run a regex match (e.g., using `grep` or a JavaScript action) to detect patterns like `Fixes #\d+`, `Closes #\d+`, or `Resolves #\d+`. If the match fails, the workflow exits with a non-zero code, causing the status check to fail. This approach is commonly used in open-source projects to automate compliance with contribution guidelines, and it integrates seamlessly with branch protection rules that require status checks to pass before merging.
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 cloud solutions architect for a retail company is evaluating services for a new workload. The correct answer here reflects best practice for the specific scenario described — not a general cloud recommendation. Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option. Cloud exam questions reward reading the constraint carefully: the same technology can be right or wrong depending on the use case.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this AZ-400 question in full detail.
Configure processes and communications — This question tests Configure processes and communications — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Create a GitHub Actions workflow that validates the PR description contains a closing keyword. — Option A is correct because a GitHub Actions workflow can be configured to run on pull request events and parse the PR description for a closing keyword pattern (e.g., regex matching 'Fixes #\d+'). If the keyword is missing, the workflow can fail the check, blocking the merge via branch protection rules that require status checks to pass. This directly enforces the linking requirement without relying on human compliance or third-party tools.
What should I do if I get this AZ-400 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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