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You support a customer whose network environment includes a Microsoft Lync Server 2013 Enterprise Pool that is configured with Enterprise Voice and Dial-in Conferencing. All client computers run Windows 7 or Windows 8. You configure the following group policies to apply Quality of Service (QoS) for audio and video to the organizational unit (OU) that contains the Lync 2013 Conferencing servers:
-Audio: DSCP port 46 and port range: 57000:59152
-Video: DSCP port 34 and port range: 60501:65535
You need to create a QoS for Application Sharing. What should you do?

• A. Create a group policy, assign a Differentiated Services Code Point (DSCP) value of 24, and configure the policy to use ports 57500:58500.
• B. Create a group policy, assign a Differentiated Services Code Point (DSCP) value of 24, and configure the policy to use ports 40803:49151.
• C. Create a group policy, assign a Differentiated Services Code Point (DSCP) value of 46, and configure the policy to use ports 40803:49151.
• D. Create a group policy, assign a Differentiated Services Code Point (DSCP) value of 34, and configure the policy to use ports 57500:58500.

You support two Microsoft Lyric Server 2013 servers named Lync2013FE and Lync2013BE. The servers are configured to use contoso.local as their default session initiation protocol (SIP) domain. After your company acquires another company, you add NewCompany.com as the second SIP domain. Your internal DNS server contains the following records:

You discover that internal users who use Lync 2010 and Lync 2013 clients are unable to sign in by using NewCompany.com SIP addresses internally. You need to ensure that users are able to automatically sign in by using NewCompany.com SIP addresses. Which two DNS records should you create? (Each correct answer presents part of the solution. Choose two.)

• A. Autodiscover.NewCompany.com A 192.168.10.20
• B. lyncDiscover.NewDomain.com A 192.168.10.10
• C. Sip.NewCompany.com A 192.168.10.10
• D. _sipinternal._tls.NewCompany.com SRV priority 0, weight 0, port 5061, Sip.contoso.local
• E. _sip._tls.NewCompany.com SRV priority 0, weight 0, port 5061, Sip.NewCompany.com

You support a customer whose network environment includes Microsoft Lync Server 2013 Standard deployed with an Edge Server that is connected to the Internet. Your customer currently has Lync Online configured for Hybrid mode with Office 365. You need to help your customer enable the Office Web Apps Server for users who are using on- premise Lync. What should you do?

• A. Install a Microsoft Web Access Companion Server (WAC) server on premise and configure the Lync Topology.
• B. Install Microsoft Web Access Companion Server (WAC) server components on Lync Pool Server.
• C. Configure Office 365 Microsoft Web Access Companion Server (WAC) URL in the Lync Topology.
• D. Configure Office 365 SharePoint Online URL in the Lync Topology.

You deploy 3 Microsoft Lync Server 2013 Persistent Chat server named atl-cs- 001.Iitwareinc.com. You need to remove all messages prior to March 1, 2012 from a chat room named LegalChatRoom. hich cmdlet should you run?

• A. Set-CsPersistentChatRoom -Identity LegalChatRoom -Managers @{Add="sip:[email protected]"}
• B. Remove-CsPersistentChatRoom -Identity "atl-cs001.litwareinc.com\LegalChatRoom"
• C. Remove-CsPersistentChatMessage -Identity "atl-persistentchat- 001.litwareinc.com\LegalChatRoom" -EndDate "3/1/2012"
• D. Clear-CsPersistentChatRoom -Identity "atl-cs001.litwareinc.com\LegalChatRoom" -EndDate "3/1/2012"

You support a Microsoft Lync Server 2013 environment that includes:
-Two Enterprise consolidated Lync servers in a single pool,
-Two Edge consolidated Lync servers in a single pool,
-One Microsoft Office Web Apps server, and
-One reverse HTTP(S) proxy server. Microsoft Exchange 2010/Microsoft Outlook 2013 are used for internal email and Unified Messaging. The email solution has been used within the company for an extended time without any issues. Unified Messaging has been configured and set
up as part of the Lync 2013 implementation project. You plan to deploy Enterprise Voice for all users, including users who have Lync Phone Edition (LPE) devices that are connected by using a LAN cable and a USB cable. You begin migrating test accounts. When a test user signs into Outlook 2013 and Lync 2013, all communications appear to be working as expected. Outlook creates the user profile as expected and logs into the test user mailbox. The test user signs into Lync as expected and is able to communicate with Exchange by using Exchange Web Services (EWS).
After the test user signs into Lync, a prompt is displayed requesting user credentials for the Lync Phone Edition device. The test user enters his credentials and the phone signs into Lync; however, after a short period of time, a yellow warning triangle appears on every test LPE device. In reviewing the LPE device for errors, you discover that Exchange integration is failing with the following error: "Connection to Microsoft Exchange is unavailable. Please contact your support team." Logs from the LPE Device are displayed in the Exhibit 1. (Click the Exhibit button.)

Internet Information Services (IIS) logs on the Exchange Client Access server (CAS) are displayed in Exhibit 2. (Click the Exhibit button.)

You need to ensure that the LPE device can authenticate to EWS. What should you do?

• A. Remove the Lync Client certificates for the test user from the Lync server.
• B. Update the Lync server internal web services certificate on each front-end pool server.
• C. Update the certificate chain on the Exchange CAS.
• D. Reissue the current Exchange CAS server certificate and bind to the IIS service.