Explanation/Reference:
Explanation:
B: After you've installed the Exchange 2013 Client Access server, there are a variety of configuration tasks that you can perform.
Although the Client Access server in Exchange 2013 doesn't handle processing for the client protocols, several settings need to be applied to the Client Access server, including virtual directory settings and certificate settings.
C: Configure certificate-based authentication for Exchange ActiveSync
http://blogs.technet.com/b/exchange/archive/2012/11/28/configure-certificate-based-authentication- forexchange- activesync.aspx
Client Access Server Configuration
To configure the Client Access server to enforce certificate based authentication:
1. Verify if Certificate Mapping Authentication is installed on the server.
Right click on Computer in the start menu and choose Manage.
Expand Roles and click on Web Server (IIS)
Scroll down to the Role Services section. Under the Security section you should see Client Certificate Mapping Authentication installed.
If you don't see Client Certificate Mapping Authentication installed, click add Role Services > (scroll) Security and select Client Certificate Mapping Authentication and then click Install.
Reboot your server.
References: