AZ-400 Practice Question: Design and implement build and release pipelines
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.
Which TWO practices should you adopt to improve the security of your Azure DevOps pipeline? (Choose two.)
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Grant the least privilege to service connections
Options B and D are correct. B reduces the attack surface by limiting permissions. D ensures secrets are not stored in code. A is wrong because using the default agent may expose the pipeline to untrusted code. C is wrong because it bypasses security reviews.
Key principle: Authentication proves identity; authorization controls what that identity can do after login. Both must work for full privileged access.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
✓
Grant the least privilege to service connections
Why this is correct
Least privilege minimizes potential damage.
Related concept
Authentication checks who the user is.
✓
Use Azure Key Vault to store secrets and fetch them at runtime
Why this is correct
Key Vault provides secure secret management.
Related concept
Authentication checks who the user is.
✗
Use the default hosted agent for all builds
Why it's wrong here
Default agents may have broad access.
✗
Store secrets as plain text in pipeline variables
Why it's wrong here
Plain text secrets are insecure.
✗
Allow contributors to bypass the required reviewer policy
Why it's wrong here
Bypassing reviews weakens security.
Common exam traps
Common exam trap: authentication is not authorization
Logging in proves the user can authenticate. It does not automatically mean the user is allowed to enter privileged or configuration mode. Watch for AAA authorization, privilege level and command authorization details.
Detailed technical explanation
How to think about this question
This kind of question is testing the difference between identity and permission. A user may successfully log in to a router because authentication is working, but still fail to enter configuration mode because authorization is missing, misconfigured or mapped to a lower privilege level.
KKey Concepts to Remember
Authentication checks who the user is.
Authorization controls what the user is allowed to do after login.
Privilege levels affect access to EXEC and configuration commands.
AAA, TACACS+ and RADIUS can separate login success from command access.
TExam Day Tips
→Do not assume successful login means full administrative access.
→Look for words such as cannot enter configuration mode, privilege level, authorization or command access.
→Separate login problems from permission problems before choosing the answer.
Key takeaway
Authentication proves identity; authorization controls what that identity can do after login. Both must work for full privileged access.
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.
Review Cisco AAA concepts — authentication, authorization, and accounting. Study privilege levels (0–15), command authorization under TACACS+, and how RADIUS differs. Then practise related AZ-400 questions on access control and AAA configuration.
Design and implement build and release pipelines — This question tests Design and implement build and release pipelines — Authentication checks who the user is..
What is the correct answer to this question?
The correct answer is: Grant the least privilege to service connections — Options B and D are correct. B reduces the attack surface by limiting permissions. D ensures secrets are not stored in code. A is wrong because using the default agent may expose the pipeline to untrusted code. C is wrong because it bypasses security reviews.
What should I do if I get this AZ-400 question wrong?
Review Cisco AAA concepts — authentication, authorization, and accounting. Study privilege levels (0–15), command authorization under TACACS+, and how RADIUS differs. Then practise related AZ-400 questions on access control and AAA configuration.
What is the key concept behind this question?
Authentication checks who the user is.
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Question Discussion
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