Directory Infrastructure Self-study Trai... - Active

: The highest level of the AD hierarchy; a collection of one or more domain trees that share a common schema.

: Servers that host the AD database, perform authentication, and enforce security policies. Key Management Roles (FSMO) Active Directory Infrastructure Self-Study Trai...

There are five Flexible Single Master Operation (FSMO) roles assigned to specific DCs to prevent conflicts in the directory: : Manages the structure of the directory. : The highest level of the AD hierarchy;

: A logical grouping of network objects (users, computers) that share a unique name and security boundary. Active Directory Infrastructure Self-Study Trai...

: Handles password changes and time synchronization.