Site links are created to define the types of connections that are available between the components of a site. Site links can reflect a relative cost for a network connection and can reflect the bandwidth that is available for communications.

The Knowledge Consistency Checker (KCC) is responsible for establishing the replication topology and ensuring that all domain controllers are kept up to date.

An OU object is created to build a hierarchy within the Active Directory domain. It is the smallest unit that can be used to create administrative groupings, and it can be used to assign group policies. Generally, the OU structure within a domain reflects a company’s business organization.

All versions of Windows Server Active Directory use Kerberos 5.

The main categories for auditing include the following:

• Audit account logon events
• Audit account management
• Audit directory service access
• Audit logon events
• Audit object access
• Audit policy change
• Audit privilege use
• Audit process tracking
• Audit system events