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Sites Domains Site Link

The correct matches are as follows:
  1. Site: A subnet or subnets connected by a high-speed link
  2. Site link: A mapping in Active Directory of the connection between sites
  3. Subnet: A physical segment of the network that uses IP addresses derived from a single network ID
  4. Domain: The basic security boundary in a Windows network, which has its own security policies
  5. Forest: A group of domain trees that share a noncontinguous namespace

Site Links

Active Directory Field Guide

Defining a site subnet

Once you create a site object, you need to define one or more subnets for the site. The Active Directory uses this information for replication and traffic flow processes, so you are essentially telling the Active Directory which IP subnets belong to which site.
To define a subnet(s) for a site, follow these steps:
  1. In Active Directory Sites and Services, expand the Sites container and select the Subnets container.
  2. Click Action ->New Subnet. The New Object-Subnet window appears, as shown in Figure 3-3. Enter the subnet and the mask for the subnet. The console automatically translates this information in a subnet name in the form of network/bits-masked. Select the site to which this subnet physically belongs, and then click the OK button.

Figure 3-3: New Object: Subnet window
Figure 3-3: New Object: Subnet window