Exam Preparation Quiz

Explanations for each answer:

• SSH key is incorrect. SSH keys are used for secure authentication to Linux servers, but they are not the authentication mechanism used to register self-hosted agents with Azure DevOps.
• Personal access token (PAT) is correct. Personal access tokens (PATs) are used to authenticate the agent with Azure DevOps during registration. When configuring a self-hosted Linux agent, you must provide a PAT with the appropriate scope (Agent Pools - Read & Manage) to establish the secure connection between your Linux machine and Azure DevOps.
• Alternate credentials is incorrect. Alternate credentials are a deprecated authentication method for Azure DevOps and are not recommended for registering self-hosted agents.
• Certificate is incorrect. While certificates can be used for authentication in various scenarios, they cannot be used for registering self-hosted agents with Azure DevOps.