You have a SharePoint Server 2010 server farm. The farm contains the servers configured as shown
in the following table.

You need to ensure that Server2 never crawls SharePoint content through Server1.
What should you create?

A.
an alternate access mapping

B.
a crawl database

C.
a crawl component

D.
an entry in the Hosts file

Explanation:
A dedicated web front end for crawling. You can accomplished this adding the IP and host name of
the farm in the hosts file of the index server.