Your company has a data center in New York and a data center in Miami.
The company has an Exchange Server 2013 organization that contains a database availability group
(DAG). The DAG contains servers in both data centers.
The company plans to deploy Outlook Anywhere to all users.
You configure the following:
All of the Exchange Server 2013 virtual directories in the New York data center use a host name of
mail.contoso.com.
All of the Exchange Server 2013 virtual directories in the Miami data center use a host name of
miami.mail.contoso.com.
In each data center, a certificate from an enterprise certification authority (CA) is configured to
contain the following:
A certificate principal name of mail.contoso.com
Subject alternate names of mail.contoso.com and miami.mail.contoso.com
You need to recommend which task must be performed to meet the following requirements:
Users always must attempt to connect first to a server in the data center where their mailbox is
located.
Users must be able to access their mailbox if a single data center fails.
What should you recommend?

A.
Change the external host name of the Miami data center to mail.contoso.com.

B.
Modify the ExternalUrl of the Autodiscover virtual directory of the Client Access servers.

C.
Run the Set-OutlookProvider cmdlet.

D.
Run the Add-AvailabilityAddressSpace cmdlet.

Explanation:
* The Set-OutlookProvider cmdlet creates the global settings for the Autodiscover service. It sets the
AutoDiscoverConfig object under the Global Settings object in Active Directory and sets the
attributes specified in the parameters listed in the Parameters section.* The AutoDiscover feature in Exchange 2007/2010 is often overlooked during setup but is an
important factor in ensuring smooth day to day running of your Exchange environment. Its main
function is to provide the mail client with all the configuration options it needs, from only the user’s
email address and password. This is particularly useful for remote users and smartphone users, who
no longer have to enter advanced settings like server names and domains. It is also vital for the
correct functioning of features such as Out Of Office and the Offline Address Book in Outlook.