Deploying Enterprise Voice with Skype for Business 2015 (beta)
Question No: 11 HOTSPOT – (Topic 2)
You need to create the Unified Messaging (UM) dial plans and access numbers for subscriber access.
How many UM dial plans and access numbers should you create? To answer, select the appropriate number of UM dial plans and access numbers in the answer area.
Question No: 12 HOTSPOT – (Topic 2)
You need to allocate bandwidth required for application sharing.
How much bandwidth in kilobits per second (Kbps) should you allocate? To answer, select the appropriate amount of bandwidth for each network connection in the answer area.
Topic 3, Humongous Insurance
Humongous Insurance currently employs 7,500 people and is based in the United States.
The company has 4,000 users in its main office in Chicago. It also has two branch offices, one in New York with 2,000 users and the other in Los Angeles with 1,500 users. The
company has 30 executives located across the offices.
The company recently migrated from Lync Server 2010 to Skype for Business Server 2015.
The company plans to increase the use of audio and video (A/V) conferencing to reduce travel costs. Employees have been asked to use A/V, telephony, and instant messaging (IM) conferencing solutions whenever possible for communication with clients and users in the branch offices.
Humongous Insurance is federated with Trey Research Corporation, which uses a third- party IM solution. Users at both companies need to communicate with each other by using their respective IM client.
The company plans to continuously analyze the network to identify: potential network delay points
availability of adequate bandwidth to meet current requirements and anticipated growth
The company plans to continuously analyze the Skype for Business Server 2015 servers for performance metrics.
Humongous is in discussion to acquire the Southbridge Video company. Southbridge Video has 2,000 users in two sites.
Employees of Humongous Insurance use a variety of mobile devices, including Windows Phones and iOS phones. All iOS phone users must be notified of events, such as new or missed IM invitations and voice mail messages, even when they are using the corporate wireless network.
All public switched telephone network (PSTN) traffic will use the G.711 codec. All voice will use the RTAudio Wideband codec.
All peer-to peer (P2P) video sessions will support H.264 and RTVideo codecs. Audio bandwidth between the Los Angeles and New York offices is limited.
All users report poor audio and video quality. Calls are dropped or suffer from jitter and lag. These issues exist when users are using the Skype for Business client or Skype for Business Phone Edition.
Humongous Insurance users currently are unable to IM with external clients that use different IM programs.
Currently there is no network oversight for Skype for Business communications. The company has no plans to increase the bandwidth at any sites.
Humongous Insurance does not have a defined remote user access policy.
The three offices are connected to one another as shown in the following network diagram:
Additional information about the existing environment is shown in the Supporting Information section:
Overview of data centers
Detail of the Chicago data center
Overview of audio and video codec bandwidths
Employees of Humongous Insurance use various operating systems, including Windows 7 Enterprise, and Windows 8. All users are enabled for Enterprise Voice, and many have Skype for Business Phone Edition.
The concurrent communication modalities usage of the three offices is shown in the following table:
Humongous Insurance expects to see the number of video users increase by as much as 10 percent. The company expects to see the number of voice users increase by as much as 15 percent.
All users at Humongous Insurance will be Skype for Business enabled.
The network team configures Quality of Service (QoS) as follows:
The Skype for Business Server 2015 media configuration matches the port settings used on the network.
The company uses synthetic transactions to perform call and voice tests.
Many of the employees of Humongous Insurance work from home and sign in securely to the corporate environment in order to use Skype for Business.
Humongous Insurance would like to review the existing network topology and wants to ensure that network capacity will meet current Skype for Business Server 2015 infrastructure capacity requirements for audio and video usage, as well as meet the anticipated increases.
All existing issues relating to the poor quality of Skype for Business Server 2015 calls and conferencing need to be addressed. Company policy allows for all employees to have the option to use video conferencing. Employees will be limited to VGA video quality. Company executives will not have these limitations.
Quality of Service (QoS) ports must be unique for audio and video traffic.
The company wants to confirm that the current network bandwidth allocated for the network is sufficient for all current and anticipated growth in Skype for Business Server 2015 traffic and would like to guarantee high-quality Skype for Business Server 2015 calls and video conferencing.
Humongous Insurance wants to ensure that the volume of Skype for Business Server 2015 traffic does not exceed 50 percent of WAN bandwidth.
The recommended design solution needs to eliminate the possibility of WAN oversubscription by Skype for Business Server 2015 traffic.
Humongous Insurance wants to use only dedicated computers to monitor the network and perform synthetic transactions to limit the load on the computers.
The proposed Skype for Business Server 2015 solution needs to provide scalability to accommodate the company#39;s future acquisition of Trey Research.
The proposed Skype for Business Server 2015 solution should be readily available for users in all three sites.
The company wants to allow only authorized employees to connect remotely.
All remote users will use a secure method when remotely connecting to the network and the Skype for Business environment.
The number of open and listening ports must be kept to a minimum.
All maintenance and tests of network policies must be done outside of normal business hours. Bandwidth between sites cannot be increased.
The quality of voice and video traffic must be increased. The number of dropped calls must be reduced.
The corporate information technology (IT) department must be able to push updates and scan users’ computers when they are connected remotely.
All push notifications must be able to be sent mobile clients on all supported cell phone manufactures. Many users do not use Windows mobile phones.
IM users must be able to IM with users who are using other IM programs.
The Skype for Business Server 2015 Bandwidth Calculator must be used to analyze Skype for Business traffic.
It is recommended to deploy QoS for end-to-end support.
Mobile client users are supported only with Lync 2013 Mobile clients.
Overview of data centers
Detail of the Chicago data center
Overview of audio and video codec bandwidths
Question No: 13 – (Topic 3)
You need to configure the Skype for Business Server 2015 environment to meet the technical requirements for push notifications to mobile users.
Which two actions should you perform? Each correct answer presents part of the solution.
Open port 23457 on the Enterprise Wi-Fi network.
Open port 5223 on the Enterprise Wi-Fi network.
Configure NAME redirection over HTTPS for the acquired domain.
Configure a web publishing rule for port 80 on the reverse proxy for the acquired domain.
Question No: 14 – (Topic 3)
You need to recommend a solution that will improve voice quality for Skype for Business clients. What should you recommend?
Change the Voice802lp value to 46.
Ensure that VoiceDiffservtag values are set to 46 for all Skype for Business Phone Edition devices at all sites.
Configure an Audio and Video Quality of Service (QoS) to use a DSCP value of 40 and a port range of 57501:65535.
Configure a Domain Group Policy object (GPO) configuring Quality of Service (QoS) and set it to Enforced for all Windows 7 clients.
Question No: 15 DRAG DROP – (Topic 3)
You need to prepare the Quality of Service (QoS) policy for the Skype for Business environment.
Which values should you use for each configuration? To answer, drag the appropriate value or values to the correct configuration or configurations in the answer area. Each value may be used once, more than once, or not at all. You may need to drag the split bar between panes or scroll to view content. Each correct set of answers is worth one point.
Question No: 16 – (Topic 3)
You need to recommend a solution to test users’ ability to schedule, join, and conduct an audio/video (A/V) conference.
What should you do?
Run the Test-CsAVConference Skype for Business Management Shell cmdlet and then analyze the trace call flow in Snooper.
Run the Test-CsMcxConference Skype for Business Management Shell cmdlet and save the results. View the results by using the Skype for Business Server 2015 Logging Tool.
Run the Test-CsUcwaConference Skype for Business Management Shell cmdlet.
Run the Test-CsAudioConferencingProvider Skype for Business Management Shell cmdlet and save the results. View the results by using the Central Logging Service.
Question No: 17 – (Topic 3)
You need to allocate the current average amount of bandwidth that is required for peer-to- peer (P2P) voice calls for all three sites.
How much bandwidth in kilobits per second (Kbps) should you allocate?
D. 135,795 Kbps
Topic 4, Trey Research
Trey Research is a global marketing research organization that has a main office in Moscow and branch offices in Los Angeles, London, Berlin, Copenhagen, and Jakarta.
The number of users per office is shown below:
The company has existing IP-PBX systems that are reaching end of life. They use an automatic call distribution (ACD) system for their help desk. This system provides interactive voice response options to users so that they can choose the location for support. This system is also reaching end of life.
The Copenhagen office uses a call group pickup solution that runs on an existing IP-PBX system. All users with the exception of users in Copenhagen have Direct Inward Dialing (DID) numbers.
Trey Research has Skype for Business Enterprise pools in the Moscow, London, and Berlin offices, respectively. They run a Unified Communications Managed API (UCMA) based application in a trusted application pool.
Two users who recently joined the company in the finance department report that they are not able to use the Aries phone even when tethering the phone to their PC.
Executives conduct global town hall meetings each quarter. Each meeting occurs in a different office. Employees attend the global town hall meetings in meeting rooms which are equipped with full high definition (HD) screens for video. Ten percent of the employees attend the audio portion of the global town hall meetings from their desk.
Trey Research plans to implement Skype for Business Enterprise Voice across the company to replace the existing IP-PBX systems.
You have the following requirements:
You must reduce international long distance calling costs, and lower support and administration costs foe the IP-PBX and ACD solutions.
You must implement voice survivability for all the sites in case of a wide area network (WAN) link failure.
Germany experiences high public switched telephone network (PSTN) call volume. All calls for Germany must breakout from Berlin in the event of Mediation Server pool failure in Berlin.
Existing gateways do not support the REFER method. You must use the existing gateways with Skype for Business to provide PSTN connectivity.
Where possible, you must optimize media paths.
All calls placed to Russia from any office must route through the Moscow gateways.
In the event of a failure of both gateways at any office, all international calls from that office must route through the Moscow gateways.
The solution must be resilient to the failure of mediation server pools.
All PSTN calls to Germany must use Berlin gateways in the event of Mediation Server pool failure in Berlin.
The maximum concurrent peer-to-peer connections between Moscow and Berlin will be 196.
Response groups must be managed by dedicated response group administrators.
You must use the following typical bandwidth values to determine the bandwidth requirements in kilobits per second (Kbps) for the solution:
Video resolution bandwidth:
Audio codec bandwidth:
You test the Enterprise Voice solution with users in the Copenhagen office. During testing, users reported audio call issues related to the Call Admission Control (CAC) configuration. The relevant portion of the current configuration is shown in the Table below:
You create the following policies:
Question No: 18 – (Topic 4)
You are troubleshooting audio call issues for users in Copenhagen. You need to resolve the issues.
Which three actions should you perform? Each correct answer presents part of the solution.
Create and configure a new network region and assign Copenhagen to this region.
Create an inter-site policy which includes Copenhagen and Berlin and apply the existing BandwidthPolicyProfile quot;LOWquot;.
Create an inter-site policy which includes Copenhagen and Moscow and specify the existing BandwidthPolicyProfile quot;LOWquot;.
Add Copenhagen to the Berlin network region.
Create and configure a new network region and assign Berlin and Copenhagen to this region.
Question No: 19 HOTSPOT – (Topic 4)
You need to deploy the Mediation Server pools, gateways, and trunks that are required to support London, Berlin, and Moscow users.
How many of each component should you deploy? To answer, select the appropriate number of Mediation Server pools, gateways, and trunks and gateways from the list in the answer area.
Question No: 20 DRAG DROP – (Topic 4)
You need to replace the existing automatic call distribution (ACD) helpdesk with Skype for Business Server 2015 solution.
Which three actions should you perform in sequence to recreate the ACD in Skype for Business Server 2015? To answer, move the appropriate actions from the list of actions to the answer area and arrange them in the correct order.
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