You have an Exchange Server 2010 organization named contoso.com. You have a Client
Access server named cas1.contoso.com that is accessible on the Internet.
You access cas1.contoso.com on the Internet by using the following domain names:
mail.contoso.com
autodiscover.contoso.com
You need to ensure that mobile devices can use Auto discover on the Internet.
What should you do?
A.
Set the external URL for Microsoft-Server-ActiveSync to $NULL.
B.
Set the external URL for Microsoft-Server-ActiveSync to
https://cas1.contoso.com/Microsoft-Server-ActiveSync.
C.
Set the external URL for Microsoft-Server-ActiveSync to https://mail.contoso.com
/Microsoft-Server-ActiveSync.
D.
Set the external URL for Microsoft-Server-ActiveSync to
http://autodiscover.contoso.com/Microsoft-Server-ActiveSync.
After you have installed the Client Access server role on an Exchange Server 2010 computer, Exchange ActiveSync is enabled by default. An Exchange ActiveSync virtual directory is created on the Exchange 2010 Client Access server. You can configure a variety of options on that virtual directory.