You have a SharePoint Server 2010 server farm. The farm contains two Web servers. The load between the two Web servers is distributed by using DNS round robin. You need to ensure that the farm is available for all users if one of the Web servers fails. What should you do?
A. Configure alternate access mappings.
B. Implement Windows Network Load Balancing.
C. Configure netmask ordering.
D. Add a new Web server to the farm.
