The correct options are Authorization credentials such as a personal access token and The organization URL.

The unattended installation script must include Authorization credentials such as a personal access token so the agent can authenticate to Azure DevOps and register itself. The token provides the permission needed for the agent to join the organization and accept jobs.

The script also needs The organization URL so the agent knows which Azure DevOps account or organization to contact during registration. The URL directs the agent to the server endpoint that will manage and configure it.

The deployment group name is not required for a basic unattended agent installation. Deployment groups are used for a different release pattern and are registered with their own workflow rather than being a mandatory parameter for the agent setup script.

A service connection name is not part of the agent registration parameters. Service connections are created to allow pipelines to access external services and they are configured at the project level after agents are available.

The agent pool name is not strictly required as a minimal parameter for unattended setup because the installer can register the agent to a default pool or you can specify a pool later. The essential items for unattended registration are the authentication token and the organization endpoint.

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