1. False. Some information can travel to other regions or is available globally. For example, sometimes, agents are running in other regions when capacity in the chosen region is low.
2. Work item | Project | Organization | Region. An Azure DevOps organization is the top-level construct that can be created by users. Every organization is in precisely one region, which is maintained by Microsoft. Within an organization, one or more projects can be created. In turn, a project can contain many work items, such as user stories, features, or epics.
3. False. The general recommendation is to have just enough projects: the fewer the better. Isolation and very strict authorization boundaries may be reasons for choosing to use multiple projects.

4. Authorizations and licensing. Authorizations can be set up to the limit that can be accessed by every individual user or a group of users...