Microsoft Exam AZ-400 Topic 7 Question 42 Discussion

Personal access tokens (PATs) give you access to Azure DevOps and Team Foundation Server (TFS), without using your username and password directly. These tokens have an expiration date from when they're created. You can restrict the scope of the data they can access. Use PATs to authenticate if you don't already have SSH keys set up on your system or if you need to restrict the permissions that are granted by the credential.

https://docs.microsoft.com/en-us/azure/devops/repos/git/auth-overview