You install the Web Server (IIS) server role on two servers named Server1 and Server2. The servers run Windows Server 2008 R2.
Your company has a Web site named www.contoso.com hosted on Server1. The Web site is due for maintenance. The Web content must be available during maintenance. You create a mirror Web site located on Server2.
You need to configure the www.contoso.com site to redirect requests to Server2.
What should you do first?

A.
Run the appcmd set config /section:httpRedirect /enabled:true command.

B.
Run the appcmd set config /section:httpRedirect /enabled:false command.

C.
Run the appcmd set site /site.name:contoso /-bindings.[protocol=’http’,www.contoso.com] command.

D.
Run the appcmd set site /site.name:contoso /+bindings.[protocol=’http’,www1.contoso.com] command.