You have a SharePoint Server 2010 server farm. You plan to host multiple site collections in a single
Web Application. You need to prevent user profiles from being shared between the site collections.
What should you do?
A.
Enable multi-tenant support.
B.
Create multiple profile databases.
C.
Create multiple content databases.
D.
Configure the Secure Store Service Application.
Explanation:
BURGOS MNEMO: “multi-tenant”
Enabling Multi Tenant Support in SharePoint 2010
http://blogs.technet.com/b/speschka/archive/2009/11/30/enabling-multi-tenant-support-insharepoint-2010.aspx