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Microsoft AZ-400 Exam - Topic 5 Question 137 Discussion

You plan to provision a self-hosted Linux agentWhich authentication mechanism should you use to register the self-hosted agent?
B) personal access token (PAT)
A) SSH key
C) Alternate credentials
D) certificate

Microsoft AZ-400 Exam - Topic 5 Question 137 Discussion

Actual exam question for Microsoft's AZ-400 exam
Question #: 137
Topic #: 5
[All AZ-400 Questions]

You plan to provision a self-hosted Linux agent

Which authentication mechanism should you use to register the self-hosted agent?

Show Suggested Answer Hide Answer
Suggested Answer: B

Note: PAT Supported only on Azure Pipelines and TFS 2017 and newer. After you choose PAT, paste the PAT token you created into the command prompt window. Use a personal access token (PAT) if your Azure DevOps Server or TFS instance and the agent machine are not in a trusted domain. PAT authentication is handled by your Azure DevOps Server or TFS instance instead of the domain controller.


https://docs.microsoft.com/en-us/azure/devops/pipelines/agents/v2-linux

https://docs.microsoft.com/en-us/azure/devops/pipelines/agents/v2-linux?view=azure-devops

by Vallie at Jul 01, 2026, 08:58 AM

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Lemuel
3 days ago
I think SSH key is the best option. It's secure.
upvoted 0 times
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Adelle
8 days ago
I thought SSH keys were the only option!
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Vi
13 days ago
Wait, can you really use a certificate for this?
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Carma
18 days ago
Alternate credentials? Seems outdated to me.
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Jackie
23 days ago
I think a personal access token is easier to manage.
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Shay
29 days ago
Definitely go with SSH key for security.
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Daniela
1 month ago
I feel like certificates are more for securing communications rather than registering agents, but I could be wrong.
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William
1 month ago
I practiced a similar question, and I think alternate credentials might be an option, but I’m not confident about that.
upvoted 0 times
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Rana
1 month ago
I’m not entirely sure, but I remember something about SSH keys being secure for agent registration.
upvoted 0 times
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Margo
2 months ago
I think the personal access token (PAT) is the right choice since it’s commonly used for authentication in Azure DevOps.
upvoted 0 times
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