To manage domains within a forest, which group should an administrator be a member of?

To manage domains within a forest, an administrator must be a member of the Enterprise Admins group. This group has the necessary permissions to perform actions across all domains within the forest, which includes creating and managing domains and applying forest-level settings. Being part of this group grants the administrator the authority to manage resources and implement policies that affect every domain within that forest, not just a single domain.

In contrast, the Domain Admins group is limited to managing a specific domain, while the Group Policy Admins group specializes in managing Group Policy objects and settings. The Schema Admins group has the designated role of managing the schema within Active Directory, which governs the rules and structure on how objects can be created and managed. Therefore, for tasks involving multiple domains or the overall management of the forest, membership in the Enterprise Admins group is essential.