Microsoft 074-338

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Microsoft Lync 2013 Depth Support Engineer Sample Questions:

1. You support a Microsoft Lync Server 2013 environment with open federation for a company named Contoso. Contoso's perimeter network topology is shown in the exhibit. (Click the Exhibit button.)

The public certificates on the external interfaces of the Lync Edge and Reverse Proxy are as follows:

You receive a support ticket that audio calls to federated partners that also use Lync Server 2013 are not working. You need to correct the issue of the failed audio calls. What should you do?

A) Open the inbound and outbound UDP port 3478 on the external firewall to the AV Edge Service External IP address.
B) Add "contoso.com" as a subject alternative name to the public certificate on the reverse proxy external interface.
C) Add "lyncdiscover.contoso.com" as a subject alternative name to the public certificate on the reverse proxy external interface.
D) Open the inbound and outbound UDP and TCP port range 50000-59999 on the external firewall to the AV Edge Service External IP address.
E) Open the inbound and outbound UDP port 5061 on the external firewall to the Access Edge Service External IP address.

2. You deploy Microsoft Lync Server 2013 Enterprise Edition and create a pool named Lync2013pool.Contoso.local. You configure the Lync admin URL to be admin.contoso.local. The Front End and Back End roles are installed on servers named FE2013 and BE2013. You create the following DNS records: _Sipinternaltls._tcp.contoso.local SRV priority 0, weight 0, port 5061, lync2013pool.contoso.localDialin A 192.168.10.10FE2013 A 192.168.10.10BE2013 A 192.168.10.11 You attempt to open the Lync Server Control Panel and you receive an error message. You need to be able to open the Lync Server Control Panel. Which two actions should you perform? (Each correct answer presents part of the solution. Choose two.)

A) Create the following DNS A record: lyncdiscoverinternal.contoso.localA 192.168.10.10
B) Create the following DNS A record: admin.contoso.localA 192.168.10.10
C) Create the following DNS SRV record: _sipinternal._tcp.contoso.local SRV priority 0, weight 0, port 5061 lync2013pool.contoso.local
D) Create the following DNS A record:Meet.contoso.local A 192.168.10.10
E) Create the following DNS A record: lync2013pool.contoso.local A 192.168.10.10

3. You administer Microsoft Lync Server 2013 clients and servers in your customer's
network. All client computers run Windows 8 Enterprise and Microsoft Lync 2013.
The computers are members of an Active Directory Domain Services (AD DS)
domain named contoso.com. A user installs the Lync Windows Store App on his
computer. He reports that he is unable to sign in to the Lync Windows Store App.
The same user can successfully sign in by using Lync 2013. You need to diagnose
the reason for the failure. What should you do?

A) Open a Telnet session to the Lync server.
B) Flush the DNS cache on the client computer.
C) Run nslookup against the internal DNS server.
D) Run nslookup against an external DNS server.

4. 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) 3.5 Mbps
B) 2.5 Mbps
C) 3 Mbps
D) 34 Mbps

5. You support a Microsoft Lync Server 2013 environment that consists of one Enterprise pool on a Front End Server Internal and external users cannot join online meetings using the Lync 2013 Lync Web App. The same users are able to join online meetings by using the Lync 2013 client. You need to diagnose the cause of the meeting join issues. Which cmdlet should you run from the Lync Server Management Shell?

A) Test-CsMcxConference
B) Test-CsUcwaConference
C) Test-CsAsConference
D) Set-CsWebService, with the AllowAnonymousAccessToLWAConference parameter

Solutions: