Which two actions should you perform?

Your company has offices in Montreal, New York, and Toronto.
Each office is configured as an Active Directory site. The Montreal office has a site link to the
New York office. The New York office has a site link to the Toronto office. You have an
Exchange Server 2013 organization that contains five Mailbox servers. The organization is
configured as shown in the exhibit. (Click the Exhibit button.)

The servers in the Montreal and Toronto offices are members of a database availability
group (DAG) named DAG01. DAG01 contains two databases name TOMBX and MTLMBX.
MTLMBX is active on EX1 and contains all of the mailboxes of the users in the Montreal
office. TOMBX is active on EX3 and contains all of the mailboxes of the users in the Toronto
office. You need to ensure that all email messages transmitted between the Montreal users

and the Toronto users are routed through EX5. Which two actions should you perform?
(Each correct answer presents part of the solution. Choose two.)

A.
Run the Set-MailboxTransportService cmdlet on EX5.

B.
Make EX5 the source server for all of the Send connectors.

C.
Create a separate DAG for each of the Montreal and Toronto offices.

D.
Add EXS to DAG01.

E.
Configure the New York office as a hub site.

Explanation:
A: * Use the Set-MailboxTransportService cmdlet to view the transport configuration
information for the Mailbox Transport service on Mailbox servers.
* The Mailbox Transport service runs on all Mailbox servers and is responsible for delivering
messages to and accepting messages from local mailbox databases using a remote
procedure call (RPC). The Mailbox Transport service also uses SMTP to send messages to
and from the Transport service that runs on all Mailbox servers for routing messages to their
ultimate destinations.
C: A database availability group (DAG) is a set of up to 16 Microsoft Exchange Server 2013
Mailbox servers that provides automatic, database-level recovery from a database, server,
or network failure. DAGs use continuous replication and a subset of Windows failover
clustering technologies to provide high availability and site resilience. Mailbox servers in a
DAG monitor each other for failures. When a Mailbox server is added to a DAG, it works with
the other servers in the DAG to provide automatic, database-level recovery from database
failures.