###BeginCaseStudy###
Case Study: 1
Contoso Ltd
Company Overview
Contoso, Ltd. is a wholesale travel agency.
Physical Locations
The company has offices in New York and Seattle. Each office has a call center. All IT staff
and help desk staff are located in the New York office.
Existing Environment
Contoso has a single domain named contoso.com. An Active Directory site exists for each
office. The sites connect to each other by using a high-speed WAN link. The WAN link has
an average utilization rate of 90 percent during business hours. The domain contains three
domain controllers. The domain controllers are configured as shown in the following table.

The network has an Exchange Server 2010 Service Pack 1 (SPl) organization that contains
four servers. The servers are configured as shown in the following table.

Each mailbox database is 400 GB.
All of the servers have the following hardware configurations:
• 64 GB of RAM
• One dual quad-core Intel Xeon processor
• Two l-gigabit per second Ethernet network adapters
• One RAID 10 disk array that has 12 300-GB, 15,000-RPM SAS disks for data
• one RAID 1 disk array that has two 73-GB, 10,000-RPM SAS disks for program files
• One RAID 1 disk array that has two 73-GB, 10,000-RPM SAS disks for the operating system
Requirements
Business Goals
Contoso has the following general requirements that must be considered for all technology
deployments:
• Minimize costs whenever possible.
• Minimize administrative effort whenever possible.
• Minimize traffic on the WAN link between the offices.
Planned Changes
Contoso acquires a company named Margie’s Travel. Margie’s Travel has 3,000 employees.
Margie’s Travel has the following email infrastructure:
• A call center, where 200 employees work
• UNIX-based email hosts that users access by using POP3 and SMTP
• Three departments that use the SMTP domains of margiestravel.com,
east.margiestravel.com, and blueyonderairlinesxam. Users are assigned only one email
address that uses the SMTP domain of their department
You plan to deploy a new Exchange Server 2010 SP1 organization to Margie’s Travel. The
new email infrastructure must meet the following implementation requirements:
• All employees must have access to their mailbox if a single server fails.
• Call center employees must use windows Internet Explorer 8 to access their mailbox.
• The administration of the Margie’s Travel Exchange organization must be performed by a
dedicated team.
• Call center employees must be prevented from accessing the calendar or journal features of
Outlook Web App.
• All employees who do not work in the call center must have access to all of the Outlook
web App features.

• All email messages sent to recipients outside of Margie’s Travel must have a return address
in the user@margiestravel.com format.
The new email infrastructure for Margie’s Travel must meet the following security
requirements:
• Contoso administrators must be prevented from viewing or modifying the settings of the
mailboxes of Margie’s Travel users.
• All inbound and outbound Internet email to and from the Margie’s Travel domains must be
routed through the Hub Transport servers of Contoso.
• All email messages that contain confidential customer information must be encrypted
automatically while in transit and the recipients of the messages must be prevented from
forwarding them to other users.
Compliance Requirements
Contoso must meet the following compliance requirements:
• Each email message sent by an attorney from the Contoso legal department must be
approved by the manager of the legal department.
• Attorneys must be able to classify email messages as “attorney-client privileged”.
• All messages classified as “attorney-client privileged” must contain a legal disclaimer
automatically.
User Requirements
All users who have a portable computer use Microsoft Outlook 2010 when they work online
and offline. When the users work offline, they must be able to read existing email messages
and create new email messages. Users who have a large mailbox must minimize the amount
of hard disk space used by the mailbox on their portable computer.
###EndCaseStudy###

You are designing the Exchange organization for Margies Travel. You need to ensure that all of the
emails sent to the Internet by the Margie’s Travel users have return email addresses in the required
format. What should you include in the design?

A.
a Hub Transport server and address rewrite entries

B.
an Edge Transport server and address rewrite entries

C.
an Edge Transport server and Edge Transport rules

D.
a Hub Transport server and Hub Transport rules

Explanation:
The question states What should you include in the design Hub Transport cannot be used for address
rewrites. see below and transport rules on either the Hub Transport or the Edge Transport will not
work You use address rewriting to present a consistent appearance to external recipients of
messages from your Exchange 2010 organization. Address rewriting can be valuable to organizations
that use third-party vendors to provide e-mail support and services. Customers and partners expect
e-mail messages to come from the organization, not a third-party vendor. Similarly, after a merger or
acquisition, an organization might want all email messages to appear to come from the single new

organization. The address rewriting feature frees organizations to structure their businesses by
business requirements instead of by technical requirements or limitations.
You can also use address rewriting to enable appropriate routing of inbound messages from outside
your Exchange 2010 organization to internal recipients. Address rewriting enables replies to
messages that were rewritten to be correctly routed to the original sender of the rewritten message.
You configure Address Rewriting agents on the Receive connector and Send connector on a
computer that has the Edge Transport server role installed.
http://technet.microsoft.com/en-us/library/aa996806.aspx