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Microsoft 74-338 Exam Syllabus Topics:
| Section | Weight | Objectives |
|---|---|---|
| Topic 1: Troubleshoot Conferencing and Collaboration | 25% | - Meeting join and connectivity - Dial-in conferencing access - Application sharing and Office Web Apps integration - Audio/video quality and media flow |
| Topic 2: Troubleshoot IM and Presence | 20% | - IM delivery and federation issues - Persistent Chat problems - Sign-in and registration failures - Presence status inconsistencies |
| Topic 3: Troubleshoot Infrastructure and Core Components | 25% | - Front End, Back End, and Edge Server problems - Topology and configuration issues - Central Logging Service and monitoring tools - Certificates, DNS, and authentication |
| Topic 4: Troubleshoot Enterprise Voice | 30% | - Response Group and Call Park service - Call routing and dial plans - Mediation Server and gateway connectivity - Media quality and codec issues - Call Admission Control (CAC) and QoS |
Microsoft Lync 2013 Depth Support Engineer Sample Questions:
You support a customer whose network environment includes Microsoft Lync Server 2013 Enterprise Voice deployed at two sites named Sitel and 5ite2. All users require extension dialing. Only direct inward dialing will be used for auto attendants or response groups. The extension numbers in four-digit format are
stored in the telephoneNumber attribute on the users' Active Directory Domain Services (AD DS) account. Sitel uses 2xxx extensions, and Site2 uses 3xxx extensions. You want to retain the four-digit extensions in Active Directory, but also present the numbers as valid numbers in the Lync 2013 client. You need to ensure that four-digit dialing normalizes properly in the address book for Lync. What should you do?
- A. Modify the Company_Phone_Number_Normalization_Rules.txt file and add the following rules: ^(2\d{3})$ -- +15197778888;ext=$1^(3\d{3})$ -- +14163334444;ext=$1
- B. Use absconfig.exe from the Lync Resource Kit and change the flag of telephoneNumber to be included in the address book generation.
- C. Modify the Company_Phone_Number_Normalization_Rules.txt file and add the following rules: ^(2d\{3})$ -- +15197778888;ext=$1^(3d\{3})$ -- +14163334444;ext=$1
- D. In the Lync Control Panel, under voice routing and dial plan, modify the global dial plan to add the following rules: ^(2\d{3})$ --+15197778888;ext=$1^(3\d{3})$ -- +14163334444;ext=$1
Correct Answer: A 🗳️
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. Restart the Conferencing Attendant application.
- B. Run the Test-CsDialInConferencing cmdlet.
- C. Run the Set-CsDialinConferencingConfiguration cmdlet.
- D. Restart the Conferencing Announcement application.
Correct Answer: A,D 🗳️
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You support a customer whose network environment includes Microsoft Lync Server 2013. A firewall filters all inbound traffic from the Internet. All outbound IP traffic is permitted. Users report voice quality problems when they attempt to communicate with external participants. You need to ensure that Lync users are able to communicate with external participants. Which two ports should you open on the firewall? (Each correct answer presents part of the solution. Choose two.)
- A. TCP port 8057
- B. TCP port 4443
- C. TCP port 5061
- D. UDP port 3478
- E. TCP port 443
Correct Answer: D,E 🗳️
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. Run nslookup against the internal DNS server.
- B. Flush the DNS cache on the client computer.
- C. Run nslookup against an external DNS server.
- D. Open a Telnet session to the Lync server.
Correct Answer: A 🗳️
DRAG DROP You support a Microsoft
Lync Server 2013 environment that includes the following:
-Enterprise Edition pool with two Front End Servers named Lync2013FEl and Lync2013FE2
-One Back End Server named Lync2013BE
-One Edge Server installed into a perimeter network named Lync2013Edge
Currently traffic between LAN networks and the perimeter network is blocked.
You discover that configuration changes are not replicated to the Edge Server.
You run the Get-CsManagementStoreReplicationStatus cmdlet. You discover that
on the Edge Server, UpToDate is shown as false.
You need to replicate the latest configuration changes to the Edge Server and bring
it up to date. Which three actions should you perform in sequence? (To answer,
move the appropriate three actions from the list of actions to the answer area and
arrange them in the correct order.)
Correct Answer:

Explanation:
Box 1:
Box 2: Create a firewall rule to open an internal replication port between the Front
End and Edge servers.
Box 3:
Note:
*check the network configuration of the Edge Server, the ip address of the internal card must be configured with the same ip Topolog Buider Internal IP address.
*Verify on the firewall that separates the Back End and Edge Server Verify on the firewall that separates the Back End and Edge Server
*Invoke-CsManagementStoreReplication Forces Lync Server replication services to send complete configuration data to the specified computers.
This is done by deleting the replication status of the computers from the Central Management store.
Reference:
Troubleshooting: Replication Among Lync Server Standard and Edge Server
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