Which FSMO role is responsible for allowing new domains to be added to the forest?

• A. It handles domain trust relationships
• B. It manages DNS zones
• C. It allows adding new domains to the forest
• D. It stores the schema

Answer: (C)

In Active Directory, some tasks are controlled by a forest-wide FSMO role. The one that governs adding new domains to the forest is the Domain Naming Master. It validates the proposed domain name, ensures there are no naming conflicts across the forest, and updates the forest’s naming context when a new domain is created. That’s why this role is the one that allows new domains to be added to the forest.

For context, the Schema Master handles updates to the AD schema, and DNS zones are managed by the DNS service (not a single FSMO role), while trust relationships involve domain-level configurations rather than a forest-wide domain creation process.