You deploy a server that has Microsoft SharePoint Foundation 2010 installed.
You create a Web application named WebApp1.
You need to enable anonymous access to WebApp1.
Which settings should you configure first?

A.
Anonymous Policy

B.
Authentication Providers

C.
User Permissions

D.
User Policy

Explanation:
Enable anonymous access for a zone of a Web application
1. From Administrative Tools, open the SharePoint Central Administration Web site application.
2. On the Central Administration home page, click Application Management.
3. On the Application Management page, in the Application Security section, click Authentication providers.
4. On the Authentication Providers page, make sure the Web application that is listed in the Web Application box (under Site Actions) is the one that you want to configure. If the listed Web application is not the one that you want to configure, click the drop-down arrow to the right of the Web Application drop-down list box and select Change Web Application.
5. In the Select Web Application dialog box, click the Web application that you want to configure.
6. On the Authentication Providers page, click the zone of the Web application on which you want to enable anonymous access. The zones that are configured for the selected Web application are listed on the Authentication Providers page.
7. On the Edit Authentication page, in the Anonymous Access section, select Enable Anonymous Access, and then click Save.
At this point, the Web application zone has been enabled for anonymous access.
Source: http://technet.microsoft.com/en-us/library/cc561167.aspx