###BeginCaseStudy###
Testlet 1
Topic 2, Contoso Ltd
Overview
General Overview
Contoso, Ltd., is a scientific research and supply company that has offices along the east coast of
North America. The company recently completed an upgrade to Exchange Server 2013.
Physical Locations
The company has three sales offices and a research office. The sales offices are located in
Atlanta, New York, and Montreal. The research office is located in Miami.
Existing Environment
Existing Environment
Active Directory Environment
The network contains one Active Directory forest named contoso.com. The Miami office has its own domain
named research.contoso.com.
Each office is configured as an Active Directory site. Each site contains two domain controllers that run
Windows Server 2008 R2 x64. All of the FSMO roles for contoso.com are owned by a domain controller in the
New York site. All of the FSMO roles for the research.contoso.com domain are owned by a domain controller in
the Miami site.
One domain controller in each site is configured as a global catalog server. All of the domain controllers are
configured as DNS servers.
The functional level of the forest and domains is Windows Server 2008 R2.
Network Infrastructure
All client computers are configured to connect to the DNS servers in their respective office only.
Contoso.com has a standalone certification authority (CA) on a server that runs Windows Server 2008 R2.
All offices connect to the New York office by using a high-speed WAN link.
Email Infrastructure
The Exchange Server 2013 organization contains four servers in the New York office. The servers are
configured as shown in the following table.
All external access for the contoso.com organization is provided through an Internet link at the New York office.
Load balancing is provided by using DNS round robin. All inbound and outbound email for the domain is routed
through a mail appliance in the New York office.The Exchange Server 2013 organization contains four servers in the Atlanta office. The servers are configured
as shown in the following table.
The file share witness for NY-DAG is on a file server in the Atlanta office.
The Exchange Server 2013 organization contains two servers in the Montreal office and two servers in the
Miami office. The servers are configured as shown the following table.
All external access to the organization of the research.contoso.com domain is provided through the Internet link
at the Miami office. Load balancing is provided by using DNS round robin. All inbound and outbound email for
the domain goes through an email appliance in the Miami office.
All Exchange Server 2013 servers run Windows Server 2012 Standard.
All users have Windows Phone devices that connect to the Exchange organization by using Exchange
ActiveSync.
User Issues
You discover the following user issues:
Some users report that, intermittently, they fail to connect to their email from their Windows Phone device.
Some users from the New York office report that some searches from Outlook Web App return incomplete
results.
Some of the users in each office report that they fail to access their mailbox during the maintenance period
of the Active Directory domain controllers.
You verify that all of the remote users can connect to the network successfully by using a VPN connection, and
can then launch Outlook successfully.
Partnerships
Contoso recently entered into a partnership with a company named A. Datum Corporation. A Datum has a main office and four branch offices. The main office is located in Toronto.
A Datum has a messaging infrastructure configured as shown in the following table.
Requirements
Planned Changes
Contoso plans to deploy a hardware load balancer in the New York office. The load balancer must bridge all
SSL connections to the Exchange servers.
You plan to deploy two new Exchange Server 2013 servers in a virtual server environment in the Miami office.
The servers will host a few mailboxes as part of an evaluation of resource utilization for virtualized Exchange
servers.
You also plan to deploy a high availability solution for Mailbox servers in the
You plan to replace the email appliance in New York because of recent power outages.
Business Requirements
Contoso identifies the following business requirements:
Minimize the hardware costs required for a load balancing solution.
Minimize the software costs required for a load balancing solution.
Minimize user interruptions if a service fails on a Mailbox server.
Minimize user interruptions if a service fails on a Client Access server.
###EndCaseStudy###
You need to recommend a temporary solution to reroute all of the outbound email messages through the Miami
mail appliance during the planned replacement of the New York mail appliance.
What are three possible ways to achieve the goal? (Each correct answer presents a complete solution. Choose
three.)
A.
Modify the value of the SmartHost of the Send connector in the New York office.
B.
Increase the cost of the Send connector in the Miami office.
C.
Increase the cost of the Send connector in the New York office.
D.
Decrease the cost of the Send connector in the New York office,
E.
Modify the value of the SmartHost of the Send connector in the Miami office.
F.
Disable the Send connector in the New York office.
Explanation:
Both Miami and New York have external connections to the internet with Client Access Servers
In Microsoft Exchange Server 2013, a Send connector controls the flow of outbound messages to the receiving
server
Internal Send connectors send e-mail to servers in your Exchange organization. This connector is configured to
route e-mail to your internal Exchange servers as smart hosts.
A smart host (also known as a relay host) is a server that redirects outbound mail.
Send connectors send e-mail to the Internet. This connector is configured to use Domain Name System (DNS)
MX records to route e-mail.
The cost is important if there is more than one connector that can be used, where the lower the cost the more
preferred the route.
This is useful if you have two Internet connections, and only want to use the slower one when the faster is
down. Like weights in SRV records, the values are arbitrary. 1 vs 10 is no different than 1 vs 2, as long as there
are no others you want to squeeze between them.
Smart Host
In some situations you may want to route email through a third-party smart host, such as in an instance where
you have a network appliance that you want to perform policy checks on outbound messages.
A smart host is a type of email message transfer agent which allows an SMTP server to route email to an
intermediate mailserver rather than directly to the recipient’s server. Often this smart host requires
authentication from the sender to verify that the sender has privileges to have mail forwarded through the smart
host. This is an important distinction from an open mail relay that will forward mail from the sender without
authentication. Common authentication techniques include SMTP Authentication and POP before SMTP.
When configured to be a backup mail server (not the primary MX record), a smart host configuration will accept
mail on behalf of the primary mail server if it were to go offline. When the primary mail server comes back
online, mail is subsequently delivered via the smart host.
Some ISPs, in an effort to reduce email spam originating at their customer’s IP addresses, will not allow their
customers to communicate directly with the recipient’s mail server via the default SMTP port number 25. In this
case the customer has no choice but to use the smart host provided by the ISP.
When a host runs its own local mail server, a smart host is often used to transmit all mail to other systems
through a central mail server. This is used to ease the management of a single mail server with aliases,
security, and Internet access rather than maintaining numerous local mail servers.
NOT B
Need to increase the cost of the Send Connect in the New York Office
NOT D
Need to increase the cost not decrease the cost of the Send Connector in the New York Office
NOT E
Need to modify the value of the SmartHost of the Send connector in the New York office
A
Modify the value of the SmartHost of the Send connector in the New York office to point to the smart host in the
Miami office.
C
Increasing the cost of a Send Connector in the New York Office will make the Miami connection to the internet
the most preferred outbound connection.
F
Disabling the Send connector in the New York Office will make the Miami connection to the internet the only
outbound connection.
Send Connectors: Exchange 2013 Help
