A company has a Windows Server 2008 domain controller and a SharePoint 2007 farm. All servers on the network run Windows Server 2008.
You must provide single sign-on for Office 365 SharePoint sites from the company’s network.
You need to install the required software.
What should you install? To answer, drag the appropriate action to the correct location. Each answer may be used once, more than once, or not at all.
You may need to drag the split bar between panes or scroll to view content.
Answer: 
Explanation:
http://social.technet.microsoft.com/wiki/contents/articles/9082.office-365-and-adfs-active-directory-federation-service-installation.aspx