Exam Code: 70-333 (Practice Exam Latest Test Questions VCE PDF)
Exam Name: Deploying Enterprise Voice with Skype for Business 2015
Certification Provider: Microsoft
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Q11. - (Topic 4)
You need to resolve the issues.
Which three actions should you perform? Each correct answer presents part of the solution.
A. Create and configure a new network region and assign Copenhagen to this region.
B. Create an inter-site policy which includes Copenhagen and Berlin and apply the existing BandwidthPolicyProfile "LOW".
C. Create an inter-site policy which includes Copenhagen and Moscow and specify the existing BandwidthPolicyProfile "LOW".
D. Add Copenhagen to the Berlin network region.
E. Create and configure a new network region and assign Berlin and Copenhagen to this region.
Answer: B,C,E
Q12. - (Topic 3)
You need to recommend a solution that will improve voice quality for Skype for Business clients. What should you recommend?
A. Change the Voice802lp value to 46.
B. Ensure that VoiceDiffservtag values are set to 46 for all Skype for Business Phone Edition devices at all sites.
C. Configure an Audio and Video Quality of Service (QoS) to use a DSCP value of 40 and a port range of 57501:65535.
D. Configure a Domain Group Policy object (GPO) configuring Quality of Service (QoS) and set it to Enforced for all Windows 7 clients.
Answer: B
Q13. - (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.
A. Open port 23457 on the Enterprise Wi-Fi network.
B. Open port 5223 on the Enterprise Wi-Fi network.
C. Configure NAME redirection over HTTPS for the acquired domain.
D. Configure a web publishing rule for port 80 on the reverse proxy for the acquired domain.
Answer: B,C
Q14. - (Topic 5)
You need to solve the Enterprise Voice issue experienced by Sydney users. Which normalization rule should you use for mobile numbers?
A. ^0[45]\((d8))$
B. ^0([45]\d{6})$
C. ^0[45]\d({8})$
D. ^0([45]\d{8})$
Answer: D
Topic 6, Contoso, LTD 2
Contoso, Ltd. is a Canadian business law firm that currently employs 300 people. The company operates a main office in Vancouver that houses 250 employees and a branch office in Seattle that houses 50 employees. All Contoso users are Skype for Business- enabled. Contoso is launching a hybrid configuration of Office 365 to validate the cloud- based Exchange Online service.
Contoso plans to introduce a remote disaster recovery data center to host remote replicas of key services, including Active Directory Domain Services (AD DS), Skype for Business, Exchange, and files and legal software. The company also plans to acquire a small law firm in Vancouver called Litware, Inc., which has 80 employees. Litware currently uses a 10- megabit per second (Mbps) Internet connection.
Half of Litware employees will use Skype for Business services. All Skype for Business- enabled users in Litware will use Instant Messaging only. Currently, Instant Messaging concurrent usage at Litware is 50 percent during peak hours.
There is a possibility that Contoso will make two more acquisitions during the next three years. Vancouver and Seattle employees have submitted support tickets to report poor quality of outbound Skype for Business calls to external users. A user activity report collected by the help desk department is shown in the User Activity Report section.
There is a concern that in the future, the volume of Skype for Business traffic may reach up to 50 percent of the current bandwidth available in the Vancouver office.
User Activity Report
Existing Environment
The core portion of the infrastructure is located in the Vancouver data center, although the
Seattle data center also has two servers (listed below) to provide redundancy of Active Directory and data services.
The following services and applications comprise Contoso’s infrastructure in Vancouver and Seattle.
Vancouver Data Center:
Seattle Data Center:
An overview of the network infrastructure of Vancouver and Seattle data centers is shown in the exhibit. (Click the Exhibit button.)
All users in the Vancouver and Seattle offices use the Microsoft Windows 8 Enterprise operating system and phones that are enabled for Enterprise voice.
Contoso expects to see a growing number of remote users. They anticipate that up to 20 percent of users in Vancouver might work remotely.
Contoso has defined a team of 35 users who will participate in a pilot deployment of the Office 365 hybrid configuration.
The offices in Vancouver and Seattle are using 5-Mbps Internet connections. Contoso has a site-to-site VPN between the Vancouver office and the Seattle office.
All external outbound calls from the Vancouver and Seattle offices are routed outside through the office in Vancouver.
Business Requirements
Contoso needs to review the existing network topology as well as the Skype for Business Server 2015 infrastructure to ensure that network capacity is sufficient to accommodate the Litware, Inc. Skype for Business users in the future.
Contoso expects to see up to 85 percent of simultaneous instant messaging, 1% of peer- to-peer traffic and 25 percent of public switched telephone network (PSTN) calls over the WAN during business hours.
All existing issues that relate to poor quality of outbound Skype for Business calls need to be addressed as well.
Contoso wants to ensure the following:
Current network bandwidth allocated to the Vancouver office is sufficient to sustain the future volume of Skype for Business traffic and guarantee high quality of Skype for Business calls.
Volume the Skype for Business traffic does not exceed 25 percent of the WAN bandwidth.
Contoso plans to redesign the existing site-to-site VPN solution between the Vancouver and Seattle offices to implement a robust and reliable WAN solution with end-to-end support of Quality of Service (QoS).
The recommended design solution needs to eliminate the possibility of WAN oversubscription by Skype for Business traffic.
The proposed Skype for Business Server 2015 solution needs to be: Scalable to accommodate the company’s future acquisitions. Readily available for Vancouver and Seattle users.
In case of a disaster, a manual switchover of Skype for Business services to the disaster recovery datacenter should be available.
Technical Requirements
All Session Initiation Protocol traffic (SIP) traffic must be encrypted.
All external Skype for Business Server 2015 services must be protected by a firewall. A commercial third-party certificate must be used on the external interface of Skype for
Business Server 2015 Edge servers.
The Role-Based Access Control (RBAC) model will be implemented to delegate basic administrative tasks to the Skype for Business help desk team.
All maintenance of Skype for Business servers must be performed outside of business hours.
The proposed architecture solution must support interoperability between Skype for Business Server 2015 and Exchange 2013.
The Skype for Business Bandwidth Calculator must be used to analyze Skype for Business traffic. The QoS end-to-end support needs to be implemented.
Exhibit
Q15. DRAG DROP - (Topic 1)
You need to create the DHCP options required for Skype for Business Phone Edition devices.
Which three actions should you perform? To answer, move the three appropriate actions from the list of actions to the answer area and arrange them in the correct order.
Answer:
Q16. - (Topic 7)
You have a Microsoft Exchange Server 2013 organization and a Skype for Business Server 2015 infrastructure.
You need to design a Unified Messaging (UM) solution to meet the following requirements: Support a peak concurrency of 500 calls.
Connect to two Skype for Business Server 2015 pools.
What is the minimum number of mailbox servers that are required?
A. 1
B. 2
C. 3
D. 5
Answer: C
Explanation:
References: http://technet.microsoft.com/en-us/library/aa997637
Q17. - (Topic 4)
You need to configure the trunks defined in the Skype for Business topology based on the requirements.
A. Enable media bypass.
B. Enable centralized media processing.
C. Set Encryption Support Level to required.
D. Disable REFER support.
Answer: A,D
Topic 5, Tailspin toys
Tailspin toys is a toy manufacturer. The company headquarters is located in Melbourne. The company has a design and development office located in Singapore. The company also has branch offices in Hong Kong, Jakarta, Tokyo, Sydney, and Auckland. Tailspin Toys has implemented Skype for Business Server 2015 and is actively using instant messaging (IM), presence, peer-to peer audio and video, conferencing, remote access, and federation. The company uses Exchange Online.
The number of users in each office is shown in the following table:
Existing Environment Networks
You have the following networks:
The network latency between each branch site and the central site is more than 25ms. Based on the network latency, you use the RTAudio codec for all public switched telephone network (PSTN) calls from the branch sites.
All Windows desktop client computers run Windows 7, Windows 8.1, or Windows 10 and are domain joined.
Skype for Business
Singapore and Melbourne each have the following Skype for Business Server 2015 components:
A front-end pool with three front-end servers
A back-end pool that is configured as a two server SQL AlwaysOn availability group A single Edge Server
A single Reverse Proxy server A single Office Web App server
Tailspin Toys currently uses a third-party dial-in conferencing provider. Moving dial-in conferencing from the third-party dial-in conferencing provider to the new Skype for Business solution will add a maximum concurrency of 50 PSTN calls to the Melbourne and Singapore sites, respectively.
PBX and Dial plans
The following table details the Dial Plan for the Sydney office:
User issues
Users report the following issues:
Users in Hong Kong report issues with media quality when using Skype for Business conferencing features.
Users who need to use Call Via Work report that this option is not visible in their desktop client.
Users in the Auckland office report issues regarding call quality. You identify that the issue relates to use of non-qualified devices. You purchase new qualified devices and have delivered the device to the Auckland office.
After the migration from the existing IP-PBX, users in Sydney report that they cannot make calls to mobile numbers.
User1 is located in the Auckland office. User1 reports persistent call quality issues. You generate the following diagnostic report for User1:
Caller Device and Signal Metrics:
Audio Stream (Caller->Callee)
Audio Stream (Callee -> Caller)
Requirements
Business Requirements
You have the following business requirements:
You must centralize voice services and reduce the costs associated with long distance and international calls.
You must implement a single voice solution across the enterprise.
Any planned changes to the solution must minimize administrative and financial costs. Executives must be allowed to use third party tablets and mobile devices.
Executives must be able to receive inbound calls even under bandwidth constrained situations.
Technical Requirements
You have the following technical requirements. The new Skype for Business solution needs to replace the existing third-party party dial-in conferencing provider.
Network requirements:
Prioritize Skype for Business traffic on the network where possible. Avoid over-subscription on bandwidth constraint network sites.
Unified Messaging requirements:
Tailspin toys prefers to use voice mail as part of Exchange Online.
Enterprise Voice requirements:
Provide enterprise voice to all users in all locations. Ensure that the solution is highly available.
PSTN connections must be centralized to Melbourne and Singapore. You must implement Call Via Work functionality for specific users.
Q18. HOTSPOT - (Topic 5)
You need to configure the Enterprise Voice deployment for the Hong Kong site.
How should you configure the Hong Kong network link? To answer, select the appropriate codec and bandwidth in kilobits per second (Kbps) from the list in the answer area.
Answer:
Q19. - (Topic 7)
You support a Skype for Business Server 2015 environment that consists of the following:
A single Skype for Business Server 2015 Standard Edition pool that is located in a main office.
Four branch offices that are connected by a 9 megabits per second (Mbps) dedicated wide
area network (WAN) link, each of which has 300 users. You need to be able to support 75 concurrent calls.
Users in the branch offices report poor quality audio during conferences. You perform the following troubleshooting steps:
Implemented Quality of Service (Qos) and Call Admission Control (CAC). In CAC, defined the main office and each branch office as a site In CAC, associated subnets to the relevant sites. Provisioned policy-based QoS for media traffic.
Poor audio quality persists.
You run the Skype for Business Management Shell Get-CsNetworkSite cmdlet. The relevant portion of the results are shown below:
You need to improve audio quality. What should you do?
A. Create a region route to route network traffic between the CAC sites.
B. Create a bandwidth policy profile with an Audio Session Limit of 40 Kbps. Assign the profile to the centralsite.
C. Create a bandwidth policy profile with an Audio Session Limit of 40 Kbps and an Audio
A. Limit of 3 Mbps.Assign the profile to each branch site.
D. Create a bandwidth policy profile with an Audio Session Limit of 40 Kbps and an Audio Limit of 1 Mbps.Assign the profile to each branch site.
Answer: C
Explanation:
References: https://technet.microsoft.com/en-us/library/gg412785.aspx
Q20. - (Topic 2)
Remote users report that they fail to access their voice mail by using the Call Voice Mail option in the Skype tor Business client. Remote users can access voice mail by using the subscriber access number. Internal users do not report any issues accessing voice mail.
You need to enable voice mail access without manually dialing the subscriber number. Which two sets of ports should you open? Each correct answer presents part of the
solution.
A. TCP 443 and UDP 3478 on the external firewall
B. TCP 5062 and 8057 on the internal firewall. TCP 5062 and 8057 on the external firewall
C. TCP 443 and UDP 3478 on the internal firewall
A. D. UDP 50,000 to 59,999 on the internal firewall
E. UDP 50,000 to 59,999 on the external firewall
Answer: A,D
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.
Planned Changes
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.
Challenges
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.
Existing Environment
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.
Business Requirements
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's future acquisition of Trey Research.
The proposed Skype for Business Server 2015 solution should be readily available for users in all three sites.
Technical Requirements
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.
Supporting Information
Overview of data centers
Detail of the Chicago data center
Overview of audio and video codec bandwidths
