AZ-400 Design and implement source control Practice Question
This AZ-400 practice question tests your understanding of design and implement source control. Match the stated requirement to the specific cloud service, access model, or configuration option — many options are valid in isolation but not for this scenario. 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 development team uses a forking workflow in Azure Repos. They want to ensure that only specific users can create forks of the main repository. How can they achieve this?
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Use branch security to restrict who can create forks
In Azure Repos, the ability to create forks is controlled by a specific permission called 'Create Fork' at the repository level. By default, all contributors have this permission. To restrict fork creation to only specific users, you must remove the 'Create Fork' permission from all users and groups, then explicitly grant it only to the desired group or individuals. This is a permission-based security model, not a branch policy or global toggle.
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.
✓
Use branch security to restrict who can create forks
Why this is correct
Under repository settings, you can set security by group for 'Create Fork' permission.
Related concept
Read the scenario before looking for a memorised answer.
✗
Set branch policies on the main branch to prevent forks
Why it's wrong here
Branch policies do not control fork creation.
✗
Configure the repository to disable forks globally
Why it's wrong here
Disabling forks is all or nothing; cannot restrict to specific users.
✗
Remove the 'Create Fork' permission from all users except the required group
Why it's wrong here
There is no explicit 'Create Fork' permission in Azure Repos.
Common exam traps
Common exam trap: answer the scenario, not the keyword
The trap here is that candidates often confuse branch policies (which control branch-specific actions like pull requests) with repository-level permissions (which control actions like creating forks), leading them to incorrectly select branch security or branch policies as the solution.
Detailed technical explanation
How to think about this question
Under the hood, Azure Repos uses Azure DevOps security groups and access control lists (ACLs) to manage repository permissions. The 'Create Fork' permission is a repository-level permission that, when set to 'Deny' for a user or group, prevents them from creating forks of that repository. This is distinct from branch-level security, which controls actions like pushing or force-pushing to specific branches. In a real-world scenario, an organization might want to allow only senior developers or a specific team to create forks to control code proliferation and reduce the risk of sensitive code being forked into unmonitored repositories.
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 company's IT admin needs to give a contractor read-only access to production logs without sharing account credentials. Using role-based access control (RBAC) and temporary scoped permissions — not a permanent shared password — is the correct pattern. Questions like this test whether you can apply least-privilege access across cloud identity services.
Related glossary terms
Concepts from this question explained
These glossary pages explain the core terms tested in this AZ-400 question in full detail.
Design and implement source control — This question tests Design and implement source control — Read the scenario before looking for a memorised answer..
What is the correct answer to this question?
The correct answer is: Use branch security to restrict who can create forks — In Azure Repos, the ability to create forks is controlled by a specific permission called 'Create Fork' at the repository level. By default, all contributors have this permission. To restrict fork creation to only specific users, you must remove the 'Create Fork' permission from all users and groups, then explicitly grant it only to the desired group or individuals. This is a permission-based security model, not a branch policy or global toggle.
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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