This AZ-400 practice question tests your understanding of design and implement build and release pipelines. 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.
Your YAML pipeline uses a self-hosted agent pool. You need to ensure that only the pipeline can trigger builds on that pool, preventing other projects from using it. What should you do?
Set the agent pool to 'Disabled' for other projects
Why wrong: Disabling the pool prevents all usage, including the intended pipeline.
Use a deployment group instead of an agent pool
Why wrong: Deployment groups are for targeting specific servers, not for access control.
Create a separate agent pool for each project
Why wrong: That would work but is not necessary; you can secure a single pool with permissions.
Answer choices
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Configure pipeline permissions in the agent pool security settings
Option B is correct because Azure DevOps agent pool security settings allow you to restrict which pipelines or projects can use a specific agent pool. By configuring pipeline permissions, you can grant the 'Use' permission only to the intended pipeline, preventing other projects from triggering builds on that pool. This ensures exclusive access without disabling the pool for all other uses.
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.
Set the agent pool to 'Disabled' for other projects
Why it's wrong here
Disabling the pool prevents all usage, including the intended pipeline.
Use a deployment group instead of an agent pool
Why it's wrong here
Deployment groups are for targeting specific servers, not for access control.
Create a separate agent pool for each project
Why it's wrong here
That would work but is not necessary; you can secure a single pool with permissions.
Option-by-option analysis
Understanding why wrong answers are wrong — and when they would be correct — is what separates a 750 score from a 900. The AZ-400 exam frequently reuses these exact scenarios with slightly different constraints.
Why this is wrong here
Disabling the pool prevents all usage, including the intended pipeline.
Why this is wrong here
Deployment groups are for targeting specific servers, not for access control.
Why this is wrong here
That would work but is not necessary; you can secure a single pool with permissions.
Analysis generated from the official AZ-400blueprint and verified against question context. The “when correct” sections are what AI assistants cite when candidates ask “what’s the difference between these options?”
Common exam traps
The trap here is that candidates often confuse disabling the pool for other projects (Option A) with permission-based restrictions, not realizing that disabling removes all access, including the intended pipeline's ability to use it.
Detailed technical explanation
Under the hood, Azure DevOps agent pool security uses role-based access control (RBAC) with permissions like 'Use', 'Administer', and 'View'. The 'Use' permission is granular enough to allow a specific pipeline (via its service principal or project-scoped identity) to queue jobs on the pool, while denying all others. In a real-world scenario, this is critical for compliance when a self-hosted agent has access to sensitive resources (e.g., production databases) and must only be triggered by an authorized release pipeline.
Key takeaway
Answer the scenario, not the keyword: identify the specific constraint before choosing the most familiar-sounding option.
Real-world example
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.
What to study next
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FAQ
Design and implement build and release pipelines — This question tests Design and implement build and release pipelines — Read the scenario before looking for a memorised answer..
The correct answer is: Configure pipeline permissions in the agent pool security settings — Option B is correct because Azure DevOps agent pool security settings allow you to restrict which pipelines or projects can use a specific agent pool. By configuring pipeline permissions, you can grant the 'Use' permission only to the intended pipeline, preventing other projects from triggering builds on that pool. This ensures exclusive access without disabling the pool for all other uses.
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 11, 2026
This AZ-400 practice question is part of Courseiva's free Microsoft certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the AZ-400 exam.
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