Enable developer access from local environments to multiple Google Cloud projects following Google best practices. What should you do?

Creating groups and assigning roles to those groups is a Google best practice for managing access, especially across multiple projects. This simplifies administration by allowing you to manage permissions for a set of users collectively rather than individually. When a user's role changes or they join/leave a team, you only need to update their group membership, not individual project permissions. Providing the Project ID is standard practice for developers to specify which project their commands or applications should interact with. The incorrect options that suggest adding users directly to projects violate the best practice of using groups for role management. While providing a Project Number would technically work, Project IDs are generally more human-readable and commonly used in developer workflows.