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Microsoft 74-338 Exam Syllabus Topics:
| Section | Weight | Objectives |
| Troubleshoot Conferencing and Collaboration | 25% | - Audio/video quality and media flow
- Meeting join and connectivity
- Application sharing and Office Web Apps integration
- Dial-in conferencing access
|
| Troubleshoot Infrastructure and Core Components | 25% | - Central Logging Service and monitoring tools
- Topology and configuration issues
- Front End, Back End, and Edge Server problems
- Certificates, DNS, and authentication
|
| Troubleshoot IM and Presence | 20% | - IM delivery and federation issues
- Presence status inconsistencies
- Persistent Chat problems
- Sign-in and registration failures
|
| Troubleshoot Enterprise Voice | 30% | - Media quality and codec issues
- Call routing and dial plans
- Response Group and Call Park service
- Call Admission Control (CAC) and QoS
- Mediation Server and gateway connectivity
|
Microsoft Lync 2013 Depth Support Engineer Sample Questions:
1. You deploy a Microsoft Lync Server 2013 Enterprise Pool that is configured with Enterprise Voice and Dial-in Conferencing. All client computers run Windows 8. Users regularly use the Lync client to demonstrate new programs. A user reports that she is unable to select any Windows Store app program to demonstrate. You need to ensure that Lync users are able to demonstrate Windows Store app programs. What should you do?
A) Instruct the user to change to desktop display.
B) Using the Set-CsConferencingPolicy cmdlet, enable the EnableMultiview Join setting.
C) Using the Set-CsConferencingPolicy cmdlet, enable the AllowMultiView setting.
D) Instruct the user to change the resolution of the display.
2. Your customer has deployed a Microsoft Lync Server 2013 Enterprise Edition Front End server and has configured Enterprise Voice. The customer has deployed Server Branch Appliances (SBAs) at each of the remote office locations. The customer has reported that multiple users in one of the remote offices are not able to dial certain local numbers using Lync. The users are receiving the error "+1
(425) 555-0100 is unavailable or may not be valid/' and the call fails to setup. The customer has provided the following information from the Local Number normalization rule from the Dial Plan from the remote office that is experiencing the issue: Pattern to Match: "1((4251206)\d{7})$ Translation Rule: +1$1 You need to ensure that all users at the remote office are able to dial local 10-digit numbers with or without a leading 1. What should you do?
A) Change the pattern to match from ^1((425|206)\d{7})$ to ^1?((425|206)\d{7})$.
B) Change the translation pattern from k+1$1 to +$1.
C) Change the translation pattern from +1$1 to +1.
D) Change the pattern to match from ^1((425|206)\d{7})$ to ^((1?425|1?206)\d{7})$.
3. You support a customer whose network environment includes Microsoft Lync Server 2013 Enterprise, with two Front End Servers and two Back End Servers. The Back End Servers are deployed in a high availability configuration. You create a Front End pool named pool.contoso.com and implement DNS load balancing for client access to the Lync servers. Your internal DNS records have the following configuration: _gc._tcp.contoso.com SRV priority 0, weight 100, port 3268 dc1.contoso.com_ldap._tcp.contos.com SRV priority 0, weight 100, port 389 dc1.contoso.com_kerberos._tcp.contos.com SRV priority 0, weight 100, port 88 dc1.contoso.com_sip._tls.contoso.com SRV priority 0, weight 0, port 5061, pool.contoso.com FrontEndServer1 A 192.168.1.10FrontEndServer2 A 192.168.1.11BackEndServer1 A 192.168.1.20BackEndServer2 A 192.168.1.21Pool01 A 192.168.1.10Pool01 A
192.168.1.11 Your Lync 2013 clients fail to sign in automatically. The trace log of failed sign-in attempt is as follows: INFO :: QueryDNSSrv -DNS Name[_sipinternaltls._tcp.contoso.com]ERROR :: HRESULT failed: 80072726 = HRESULT_FROM_WIN32(::ShimWSAGetLastError()) . Failed to convert string IP to SOCKADDRERROR :: ResolveHostNameUsingGetAddrInfo getaddrinfo(pool.contoso.com) failed WARN :: ResolveHostName
-getaddrinfo failed for pool.contoso.com ERROR :: ResolveHostNameUsingDnsQuery - DnsQuery(pool.contoso.com) failed WARN :: ResolveHostName - DNS lookup failed for pool.contoso.com ERROR :: ResolveHostName - Name resolution for pool.contoso.com failedERROR :: ResolveHostSyncResolveHostName failed ERROR :: GetDnsResults - did not get any resultERROR :: QueryDNSSrvGetDnsResults query: _sipinternaltls._tcp.contoso.com failed ERROR :: DNS_RESOLUTION_WORKITEM::ProcessWorkItemResolveHostName failed You need to ensure that internal Lync 2013 clients can sign in automatically. You also need to ensure that internal traffic is load balanced across the two Front End Servers. What should you do?
A) Create the following service record: _sip._tls.contoso.com SRVPriority 0, weight 0, port 5061, pool01.contoso.com
B) Create the following host records: PoolA192.168.1.10PoolA192.168.1.11
C) Create the following host records:PoolA192.168.1.20PoolA192.168.1.21
D) Create the following host records: SipA 192.168.1.20SipA 192.168.1.21
E) Create the following service record: _sipinternal._tls.contoso.com SRVPriority 0, weight 0, port 5061, FrontEndServer1.contoso.com
4. 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-CsAsConference
B) Test-CsUcwaConference
C) Set-CsWebService, with the AllowAnonymousAccessToLWAConference parameter
D) Test-CsMcxConference
5. 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.
Solutions:
Question # 1 Answer: A | Question # 2 Answer: A | Question # 3 Answer: B | Question # 4 Answer: B | Question # 5 Answer: C |