Microsoft 074-338

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Microsoft Lync 2013 Depth Support Engineer Sample Questions:

1. You support Microsoft Lync Server 2013 servers in your customer's network.
The network includes wired and wireless networks.
The network is configured to support Microsoft Lync Mobile users who have mobile devices that are running Microsoft Lync 2010 for iPhone. Users of Lync 2010 for iPhone report that they are unable to receive push notifications when they are connected to the company's internal network. They are able to receive push notifications when they are connected to their cellular network. You need to diagnose why these users cannot receive push notifications. What should you do?

A) Run the Test-CsPhoneBootstrap cmdlet.
B) Run the Test-CsFederatedPartner cmdlet.
C) Open a Telnet session to port 5223.
D) Run the Test-CsMcxP2PIM cmdlet.

2. You support Microsoft Lync Server 2013 servers in your customer's network. The network is isolated from Internet with a firewall. Users report voice and video communication problems while communicating with external participants. You need to verify port availability for audio/video communication on the Edge Server. Which two actions should you perform? (Each correct answer presents part of the solution. Choose two.)

A) Check UDP port 3478.
B) Check TCP port 443.
C) Check TCP port 5061.
D) Check TCP port 4443.
E) Check TCP port 8057.

3. 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) 3 Mbps
C) 34 Mbps
D) 2.5 Mbps

4. Your customer's company has a main office and five branch offices located in different cities. Your customer has a Microsoft Lync Server 2013 datacenter configured with Enterprise Voice at the main office. The customer has deployed a Survivable Branch Appliance (SBA) at the first branch office and connected it to a public switched telephone network (PSTN) by using a Tl trunk line provided by your service provider. The gateway is configured to use fully qualified domain names (FQDNs). All functionality has been tested by using pilot users at the branch office. The customer reports that they tested branch isolation by disconnecting the wide area network (WAN) from their branch office and making an outbound call. The call was successful. Next, they made an inbound call to the branch office and the call failed. To troubleshoot the issue, you begin a trace of IncomingAndOutgoingCalls by using centralized logging, and make an inbound call. You open the log in snooper and search for incoming calls with the phone number from which you are calling. You do not find any messages. You open the syslog from the gateway side of the SBA and discover that messages are sent to the Lync Mediation server pool, but no responses have been received. You connect the WAN from the branch office and make an inbound call. The call is successful. Your investigation suggests that there is a configuration error on the Gateway side of the SBA. You need to identify the configuration error that causes inbound calls to fail. What should you check?

A) DNS settings on the gateway
B) Route settings of the gateway
C) The domain controller at the branch office
D) Dynamic Host Configuration Protocol (DHCP) options on the branch DHCP server

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

Solutions: