All Information
A.Datum Corporation
The following testlet will present a Case Study followed by 8 multiple choice question(s)
You will have 25 minutes to complete the testlet.
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Company Overview
A. Datum Corporation is a market research company that has 6,000 employees.
Physical Location
The company has a main office and two branch offices. The main office is located in Seattle. The
branch offices are located in Detroit and New York. The main office has 5,000 users. The Detroit
office has 900 users. The New York office has 100 users.
Remote users frequently work from locations that only allow Internet access over ports 80 and
443. The remote users frequently work from client computers that are not joined to the domain.
Existing Environment
Network Infrastructure
The network has the following servers:
• An enterprise certification authority (CA)
• A DHCP server has that the following DHCP options:
-003 Router
-006 DNS Servers
-015 DNS Domain Name
-A Network Time Protocol (NTP) server that is configured to use the User Datagram Protocol
(UDP)
-A server in the main office that runs Microsoft Office Communications Server 2007
The network has the following configurations:
-All client computers run Microsoft Office Communicator 2007.
-All Internet-accessible servers are located in a perimeter network.
-Microsoft Forefront Threat Management Gateway (TMG) is used to publish internal Web sites for
customers.
-All servers that have Office Communications Server installed run Windows Server 2003 Service
Pack 2 (SP2).
Telephony Infrastructure
The telephony infrastructure is configured as shown in the exhibit.
Requirements
Business Goals
A. Datum has the following business goals:
-Minimize software costs.
-Minimize hardware costs.
-Minimize the amount of administrative effort required to deploy new technology solutions.
Planned Changes
A. Datum plans to migrate to Lync Server 2010 and implement the following changes:
-Enable Enterprise Voice for all internal users and remote users.
-In the main office, deploy devices that run Microsoft Lync 2010 Phone Edition.
-Enable IM, presence, and conferencing with a federated partner company named Contoso, Ltd.
-Create a Lync site for each office.
-Add the primary data center and the secondary data center to the Seattle Lync site.
Technical Requirements
A. Datum must meet the following technical requirements:
-The number of public IP addresses must be minimized.
-The main office must support 1,000 concurrent PSTN calls.
-Lync services must be available to remote users over TCP port 443.
-Remote users must be able to participate in conferences and make Enterprise Voice calls.
Telephony Requirements
The telephony infrastructure must meet the requirements shown in the following table.
Each office will contain users who are assigned the Manager role and the Employees role.
Security Requirements
A. Datum must meet the following security requirements:
-Federation must only be allowed with Contoso.
-Lync-related traffic must not be routed over VPN connections
Availability Requirements
If a data center fails, all users in the main office must be able to perform the following tasks:
-Create a conference.
-Place calls to the PSTN.
-View the presence status of all users in the Seattle office.
If a WAN link fails, users in the Detroit office must be able to perform the following tasks:
-Create a conference.
-Place calls to the PSTN.
-View the presence status of all users in the Detroit office.
Reference Data
The typical bandwidth utilization for various codecs is listed in the following table.
A T1 interface supports 23 concurrent calls
Case1 (exhibit):
QUESTION 1
You are evaluating the use of standard gateway devices that support eight T1 interfaces each. The gateways do not support media bypass. You need to recommend a so lution to support PSTN calls from the main office. The solution must meet the companys technical requirements. What should you include in the recommendation?
A. Deploy four gateways and a single Mediation pool that contains two servers.
B. Deploy six gateways and a single Mediation pool that contains six servers.
C. Deploy four gateways and two Mediation pools that each contains a single server.
D. Deploy six gateways and a single Mediation pool that contains two servers.
Answer: D
QUESTION 2
You need to recommend a certificate for the external interface of the Edge pool. Which certificate should you recommend?
A. a certificate that contains one FQDN from the internal CA
B. a certificate that contains a wildcard from the internal CA
C. a certificate that contains multiple FQDNs from a trusted third-party CA
D. a certificate that contains a wildcard from a trusted third-party CA
Answer: C
QUESTION 3
You need to recommend an Enterprise Voice solution that meets the companys telephony requirements. What should you include in the recommendation?
A. Create three User Voice Policies.
In the User Voice Policies, configure the calling features and the call types.
B. Create three Site Voice Policies.
In the Site Voice Policies, configure th e calling features and the call types.
C. Create three User Voice Policies and one Site Voice Policy.
In the User Voice Policies, configure the calling features.
In the Site Voice Policy, configure the call types.
D. Create three User Voice Policies and one Site VoicePolicy.
In the User Voice Policies, configure the call types.
In the Site Voice Policy, configure the calling features.
Answer: D
QUESTION 4
You need to recommend a backup solution for the configuration store of the Lync Server 20 10 deployment. Which database should you include in the recommendation?
A. RTCLocal\rtc
B. RTCLocal\rtcdyn
C. RTC\xds
D. RTC\rtc
Answer: C
QUESTION 5
You need to recommend changes to the existing environment to support the planned Lync 2010 Phone Edition devices. What should you include in the recommendation?
A. Modifications to the DHCP options
B. Modifications to the NTP server configuration
C. Windows Server Update Services (WSUS)
D. Kerberos authentication on the Front End Servers
Answer: A
QUESTION 6
You need to recommend a Lync Server 2010 deployment solution that meets the companys availability requirements for the Detroit office. What should you recommend?
A. Deploy a Standard Edition server and a PSTN gateway in the Detroit office.
Deploy an Enterprise Edition server and a PSTN gateway in the Seattle data center.
Assign the Standard Edition server as the primary registrar.
Assign the Enterprise Edition server as the backup registrar.
B. Deploy a Standard Edition server and a PSTN gateway in the Seattle data centers.
Deploy a Survivable Branch Server in the Detroit office.
Assign the Survivable Branch Server as the primary registrar.
Assign the Standard Edition server as the backup registrar.
C. Deploy an Enterprise Edition server and a PSTN gateway in the Seattle data centers.
Deploy a Standard Edition server in the Detroit office.
Assign the Standard Edition server as the primary registrar.
Assign the Enterprise Edition server as the backup registrar.
D. Deploy a Standard Edition server and a PSTN gateway in the Seattle data centers.
Deploy a Survivable Branch Appliance (SBA) in the Detroit office.
Assign the SBA as the primary registrar.
Assign the Standard Edition server as the backup registrar.
Answer: A
QUESTION 7
You need to recommend an Enterprise Voice solution for the New York office. What should you include in the recommendation?
A. a Response Group
B. the Attendant Console
C. a dial plan
D. an IP-PBX gateway
Answer: C
QUESTION 8
You are evaluating the implementation of a SIP trunk in the main office to support the planned Lync Server 2010 deployment. You need to calculate the minimum amount of bandwidth required for PSTN calls. How much bandwidth is required on the network connection to the SIP trunk?
A. 33.98 Mbps
B. 58.40 Mbps
C. 41.80 Mbps
D. 25.29 Mbps
Answer: A
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