HOTSPOT
Your network contains an Active Directory domain.
You need to create a new site link between two sites named Site1 and Site3. The site link
must support the replication of domain objects.
Under which node in Active Directory Sites and Services should you create the site link?
To answer, select the appropriate node in the answer area.

Answer: See the explanation

Explanation:
Select the “IP” container under Inter-Site Transports.

http://technet.microsoft.com/en-us/library/cc794815.aspx
You can use this procedure to create a site link object and add the appropriate sites to it.
To create a site link object
8. Open Active Directory Sites and Services.
9. Expand Sites, and then expand Inter-Site Transports.
10.Right-click IP, and then click New Site Link.
11.In Name, type a name for the site link.
12.In Sites not in this site link, click a site that you want to add to the site link. Hold down the
SHIFT key to click a second site that is adjacent in the list, or hold down the CTRL key to
click a second site that is not adjacent in the list.
13.After you select all the sites that you want to add to the site link, click Add, and then click
OK.