All Information
Contoso Ltd.
The following testlet will present a Case Study followed by 11 multiple choice question(s).
You will have 25 minutes to complete the testlet.
For help on how to answer the questions, click the Instuctions button on the question screen.
Company Overview
Contoso, Ltd. is a large manufacturing company that has 2,600 employees.
Physical Locations
The company has a main office and a branch office. The main office is located in Denver. The
branch office is located in Montreal. The main office has 2,000 users. The branch office has 500
users. The company has 100 users who access the corporate network remotely from their
personal client computers.
Existing Environment
Network Infrastructure
The network contains an Active Directory domain named contoso.com. Contoso.com contains the
servers configured as shown in the following table.
The network contains two SMTP domains named contoso.com and adatum.com. Users have e-
mail addresses that use either the ©contoso.com or the @adatum.com suffix.
A perimeter network at the main office contains all Internet-facing servers. The main office and the branch office connect to each other by using a WAN link.
Telephony Infrastructure
The main office and the branch office have separate connections to the PSTN.
The main office has two PSTN gateways and the branch office has a single PSTN gateway.
Requirements
Business Goals
Contoso has the following business goals:
-Minimize hardware costs.
-Minimize administrative effort.
-Minimize the need for end-users to perform manual configurations.
Proposed Lync Server Design
An independent consulting firm recommends the following Lync Server 2010 server design for
Contoso:
-In the branch office, one Lync Server 2010 Mediation Server
-On the perimeter network, one Lync Server 2010 Edge Server
-In the branch office, one Lync Server 2010 Standard Edition server
-In the main office, one Lync Server 2010 server in a Front End pool
-In the main office, one server that runs Microsoft SQL Server 2008
-In the main office, one server that runs the Microsoft Exchange Server 2010 Unified Messaging
server role
Availability Requirements
Contoso must meet the following availability requirements:
-Minimize the bandwidth utilization of the WAN links.
-Provide load balancing of the Lync services when possible.
-Ensure that all of the Lync services for all of the users are available if a single server fails.
-Ensure that users in the main office can make calls if a PSTN gateway in the main office fails.
-Ensure that users in the branch office can participate in Web conferencing sessions if a single
server fails.
-Ensure that the branch office users can make calls if the connection between the branch office
and the PSTN fails.
Voice Requirements
Contoso must meet the following voice requirements:
-To initiate a telephone call to the PSTN, internal users must dial 8 first.
-To initiate a long-distance call, internal users must enter a special code before dialing the phone
number.
-All calls to an unassigned phone number must be routed to a pre-recorded message, and then
to a receptionist.
-To initiate a call to users in the main office, internal users must dial 4 first, followed by a four-digit
extension.
-To initiate a call to users in the branch office, internal users must dial 5 first, followed by a four-
digit extension.
-Remote users must be able to make calls from Microsoft Lync 2010 to phone numbers on the
PSTN.
Remote User Requirements
Contoso must meet the following remote user requirements:
-Ensure that remote users can download and install the certificate chain for the internal CA.
-Ensure that remote users can search for Lync-enabled users and add them to their Contacts list.
-Ensure that users can sign in by using their e-mail address when they connect to the new Lync environment.
QUESTION 1
You need to recommend changes to the proposed Lync server design to meet the companys availability requirements for SQL services. What should you include in the recommendation?
A. Network Load Balancing (NLB)
B. DNS load balancing
C. log shipping
D. Failover Clustering
Answer: D
QUESTION 2
You need to recommend an Enterprise Voice configuration that meets the companys voice requirements. What should you include in the recommendation?
A. four Voice Policies and one Response Group
B. one dial plan that contains four normalization rules
C. one Voice Policy and four Response Groups
D. two dial plans that contain two normalization rules
Answer: B
QUESTION 3
You need to recommend a certificate for the Lync Server 2010 d eployment that meets the companys remote user requirements. What should you include in the recommendation?
A. Deploy a certificate from the internal CA to the external interface of the Edge Server.
B. Deploy a certificate from a trusted third-party CA to the external interface of the Edge Server.
C. Deploy a certificate from the internal CA to the Mediation Servers.
D. Deploy a certificate from a trusted third-party CA to the Mediation Servers.
Answer: B
QUESTION 4
You need to recommend a solution for routing calls made to unassigned numbers. The solution must meet the companys voice requirements. What should you include in the recommendation?
A. registrar authentication and PSTN Usage records
B. PSTN re-routing and monitoring
C. the Announcement application
D. workflow agents and call detail records
Answer: C
QUESTION 5
You need to recommend a solution for the branch office users that meets the companys availability requirements. What should you include in the recommendation?
A. a Director
B. two Location Policies
C. a Survivable Branch Appliance (SBA)
D. a primary registrar and a backup registrar
Answer: D
QUESTION 6
You need to recommend changes to the proposed Lync server design to meet the companys availability requirements for voice mail. What should you include in the recommendation?
A. two call attendants
B. two Location Information Servers
C. two Response Groups
D. an additional server that has the Unified Messaging server role deployed
Answer: D
QUESTION 7
You need to recommend changes to the proposed Lync Server design that meet the companys remote user requirements. What should include in the recommendation?
A. multiple Location Policies
B. Active Directory Lightweight Directory Services (AD LDS)
C. a reverse proxy array
D. multiple Alias (CNAME) records
Answer: C
QUESTION 8
You need to recommend changes to the proposed Lync server design that meet the companys availability requirements for PSTN connectivity in the main office. What should you include in the recommendation?
A. a Response Group.
B. a new dial plan.
C. an additional Lync Server 2010 server in the Front End pool.
D. an additional server that runs the Exchange Server 2010 Unified Messaging server role.
Answer: C
QUESTION 9
You need to recommend a Web conferencing solution for the Lync Server 2010 servers in the main office. The solution must meet the companys availability requirements. What should you include in the recommendation?
A. two Standard Edition servers configured to use hardware load balancing
B. two servers in a Director pool configured to use Network Load Balancing (NLB)
C. two servers in an Enterprise Edition Front End pool configured to use hardware load balancing
D. two servers in an Enterprise Edition Front End pool configured to use DNS load balancing
Answer: C
QUESTION 10
You need to recommend a PSTN connectivity solution for the branch office that meets the companys availability requirements. What should you include in the recommendation?
A. Location Policies
B. Exchange Server 2010 Unified Messaging (UM)
C. Call Admission Control
D. multiple voice route policies
Answer: D
QUESTION 11
You need to identify which DNS records are required to provide automatic client sign-in for the remote users. Which records should you identify?
A. two Alias (CNAME) records and one Host (A) record on a public DNS zone
B. two Service Location (SRV) records and one Host (A) record on an internal DNS zone
C. two Alias (CNAME) records and one Host (A) record on an internal DNS zone
D. two Service Location (SRV) records and one Host (A) record on a public DNS zone
Answer: D
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