You need to recommend changes to the Lync Server 2013 infrastructure to support the planned changes for federation.
Which two changes should you include in the recommendation? (Each correct answer presents part of the solution. Choose two.)

• A. In the public DNS zone, create a new service location (SRV) record named _sipfederationtls._tcp. contoso.com
• B. Deploy a Director to the perimeter network
• C. Deploy a hardware load balancer to the perimeter network
• D. In the public DNS zone, create a new alias (CNAME) record named sipfederation.contoso.com

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Your company has four offices. The offices are configured as shown in the exhibit. (Click the Exhibit
button.)
You have a Lync Server 2013 infrastructure that has the following configurations:
Two regions named EMEA and US. The Paris, Berlin, and Amsterdam offices are assigned to EMEA. The
Seattle office is assigned to US. A bandwidth policy named Policy1 that has a limit of 1,024 kilobits per
second (Kbps) for audio and video. A bandwidth policy named Policy2 that has a limit of 2,048 Kbps for
audio and video. You need to configure Call Admission Control (CAC) to meet the following requirements:
Limit the Lync Server-related WAN traffic between the Seattle and Amsterdam offices to 2,048 Kbps.
In the Paris office, limit the Lync Server-related WAN traffic for audio to 1,024 Kbps and limit the Lync
Server-related WAN traffic for video to 1,024 Kbps. Which three actions should you perform? (Each correct
answer presents part of the solution. Choose three.)
Exhibit:

• A. Modify region EMEA and region US to enable an Audio/Video alternate path.
• B. Assign Policy1 to the network in the Paris office.
• C. Create a region link and assign Policy2 to the region link.
• D. Assign Policy2 to the network in the Amsterdam office,
• E. Assign Policy2 to the network in the Seattle office.
• F. Create a region route.

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You have a Lyric Server 2013 infrastructure. The infrastructure contains one central site. The infrastructure contains a Standard Edition server that has the Mediation Server role installed and is located in the central site.
You configure a trunk to an IP-PBX. The IP-PBX is on the Unified Communications Open Interoperability
program.
You have 300 users who are enabled for Enterprise Voice.
You need to provide PSTN services to the Enterprise Voice users if the IP-PBX fails.
What should you do?

• A. Install an additional IP-PBX that connects directly to the PSTN. Configure the existing trunk to use both IP-PBXs in resiliency mode.
• B. Install a new trunk to a certified SIP trunk provider. Add the trunk to the existing PSTN usage. Add the PSTN usage to the voice policy.
• C. Install a PSTN gateway that connects directly to the PSTN. Configure a new trunk to the new PSTN gateway. Create a new route and a new PSTN usage. Add the route to the PSTN usage and add the PSTN usage to the voice policy.
• D. Install a Survivable Branch Server that connects directly to the PSTN. Configure a new trunk and add the trunk to the existing route. Add the route to the PSTN usage and add the PSTN usage to the voice policy.

[A10] Contoso, Ltd., has five offices. The offices are configured as shown in the exhibit. (Click the Exhibit
button.)
Each office has a local connection to the PSTN.
The peak usage statistics are shown in the following table.

Every audio call consumes 100 kilobits per second (Kbps). You plan to replace the PSTN connection with a centralized SIP trunking service. The service will contain a SIP trunk in the Seattle office and a SIP trunk in the Amsterdam office. The solution will use least cost routing. You need to identify the maximum amount of bandwidth that will be used by each SIP trunk. What should you identify?
Exhibit:

Select and Place:

Explanation:
http://lync70337.freeforums.org/exam-a-q-indentify-the-maximum-amount-of-bandwidth-t21.html
Since both SEA and ASD have SIP trunk to internet.
NA calls: Redmond 10 *0.5 =5 Seattle: 100*0.8=80 Amsterdam: 50* 0.2=10 Berlin: 20 *0=0 Paris: 20*0.5=10 Total: 105 * 100K = 10,500 kbps
Eu calls: Redmond 10 *0.5 =5 Seattle: 100*0.2=20 Amsterdam: 50* 0.8=40 Berlin: 20 Paris: 20*0.5=10 Total: 95 * 100K = 9,500 kbps
Box 1: 9,500 Kbps Box 2: 9,500 Kbps
Transatlantic calls:
Amsterdam: 10
Berlin: 0
Paris: 10
Seattle: 20
Los Angeles: 5
Total number of transatlantic calls: 45
Total bandwidth needed: 5760 Kbps (45 x 128 kbps)
Amsterdam: Amsterdam+ Berlin+ Paris calls to north America: 50 calls x 20% (calls to N.A) x 128 kbps + + (berlin)+ 20 x50 x 128kbps equals 1280 Kbps + 1280 Kbps equals 2560 Kbps
Seattle: 100 calls x 20% (calls to Europe) x 128 kbps equals 2560 Kbps

You plan to deploy a Microsoft Lync Online subscription that will contain a single SIP domain named contoso.com.
You need to identify which DNS records must be created to meet the following requirements:
-Provide users with the ability to sign in automatically by using Microsoft Lync 2013.
-Provide users with the ability to sign in automatically by using the Lync mobile application.
Which DNS records should you identify? (To answer, select the appropriate record name and destination for each requirement in the answer area.)
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