You support Microsoft Lync Server 2013 servers in your customer's network. The network includes two branches connected with a 10Mbps network circuit. The circuit has 2 Mbps of dedicated bandwidth for Lync voice traffic. RT Audio WB codec with 50 simultaneous calls is used.
Users report that calls between the branches are being dropped, and voice quality is degraded. You need to calculate a bandwidth for the RT Audio WB codec. What minimum required dedicated bandwidth should you allocate?

• A. 3 Mbps
• B. 34 Mbps
• C. 2.5 Mbps
• D. 3.5 Mbps

Your network environment includes Microsoft Lync Server 2013 with Enterprise Voice enabled. The current Lync Voice Configuration settings include the following: When users attempt to call to an outside number, they receive the following error: "User is not authorized." You need to ensure that users are able to dial outside numbers. Which two actions should you perform? (Each correct answer presents part of the solution. Choose two.)

• A. Modify public switched telephone network (PSTN) usage record NorthAmerica- PSTN and its associated route PSTN for voice policy from ^\+(?!(61)) to ^\+l\d{10}$.
• B. Modify route NorthAmerica-LongDistance-from ^\+1\d{10>S to ^\ + l\d-{11}$.
• C. Under Dial Plan, modify normalization rule NA Long Distance from ^ (l\d{11}$ => +$11 to ^ (1\d{10}$ => +$1.
• D. Under Dial Plan, modify normalization rule Local from ^l?((403)\d{7})$ => +1$1 to ^(3\d{7})$ => +403$1.

You support a customer who is upgrading from Lync 2010 Group Chat to Lync 2013 Persistent Chat. Users are Session Initiation Protocol (SIP) enabled members of a single Active Directory Domain Services (AD DS) domain. Group Chat clients connect by using a well-known user named [email protected]. The Lookup service registers
with the Lync server to receive incoming requests.
Your customer's Persistent Chat pool fully qualified domain name (FQDN) is named pchatpool.litwareinc.com. When users sign out of Lync and then sign in again by using the Lync 2010 Group Chat client, they are able to access their data without needing to change any configuration. You need to configure Lync Server 2013 persistent chat to support legacy Group Chat clients. Which cmdlet should you run?

• A. $cred1 = Get-Credential "litwareinc\pilar" $cred2 = Get-Credential
  "litwareinc\ocschat"
  Test-CsPersistentChatMessage -TargetFqdn pchatpool.litwareinc.com -
  SenderSipAddress "sip:[email protected]" -
  SenderCredential
  $cred1 -ReceiverSipAddress "sip:ocschat@)litwareinc.com" -
  ReceiverCredential $cred2
• B. Set-CsPersistentChatRoom -Identity IT -Presenters
  @{Add="sip:ocschat(g)litwareinc.com"}
• C. New-CsTrustedApplicationEndpoint -Applicationld pchat -
  TrustedApplicationPoolFqdn pchatpool.litware.com -SipAddress sip:
  [email protected]
• D. New-CsPersistentChatEndpoint
  -SipAddress
  sip:[email protected] -
  PersistentChatPoolFqdn pchatpool.litware.com

You support a customer whose Microsoft Lync Server 2013 Enterprise environment that is configured with Enterprise Voice and Dial-in Conferencing. You remove the server that is hosting the File Store by using the Lync Topology Builder.
You add and define a new file server and publish the topology. Conference attendees report that they no longer hear their names played when they join or leave a conference. You need to ensure that conference attendees hear their names played when they join or leave a conference. Which two actions should you perform? (Each correct answer presents part of the solution. Choose two.)

• A. Run the Set-CsDialinConferencingConfiguration cmdlet.
• B. Run the Test-CsDialInConferencing cmdlet.
• C. Restart the Conferencing Announcement application.
• D. Restart the Conferencing Attendant application.

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DRAG DROP
You support a customer whose network environment includes Microsoft Lync Server 2013. Your environment is connected to a third-party network that is supported as a peer IP Private Branch Exchange (PBX) by using direct Session Initiation Protocol (SIP). Both environments are configured properly, and call routing is functional within the two domains.
Media Bypass is configured. Protocols used to specify quality of service (QoS) feedback, synchronization between media streams, and Secure Real-time Transport Protocol (SRTP) are not supported. Users report that they experience poor audio quality when calling public switched telephone network (PSTN) numbers. You need to improve call quality when calling PSTN numbers. Which PowerShell cmdlet should you use with each parameter? (To answer, drag the appropriate cmdlet to the correct parameter or parameters. Each cmdlet 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.)

Explanation: