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Exam 70-334 topic 1 question 113 discussion

Actual exam question from Microsoft's 70-334
Question #: 113
Topic #: 1
[All 70-334 Questions]

You are planning to deploy Skype for Business Online for your company.
You configure your domain, companyA.com, in Office 365.
You need to configure the correct DNS record values.
Which two DNS values should you create and how should you configure them? Each correct answer presents part of the solution.

  • A. Create lyncdiscover.companyA.com and point it to sipdir.online.lync.com.
  • B. Create sip.companyA.com and point it to sipdir.online.lync.com.
  • C. Create sip.companyA.com and point it to sipfed.online.lync.com.
  • D. Create sip.companyA.com and point it to webdir.online.lync.com.
  • E. Create lyncdiscover.companyA.com and point it to sipfed.online.lync.com.
  • F. Create lyncdiscover.companyA.com and point it to webdir.online.lync.com.
Show Suggested Answer Hide Answer
Suggested Answer: BF 🗳️
You should create a DNS record for sip.companyA.com and point it to sipdir.online.lync.com.
The URL sip.companyA.com is used by the Skype for Business client to find the online service and log in to it. You will also need to create a CNAME record that points to the Director server for Skype for Business Online.
You should create a DNS record for lyncdiscover.companyA.com and point it to webdir.online.lync.com. lyncdiscover.companyA.com is used by the Skype for
Business mobile client to help find the online service and log in to it. You will also need to create a CNAME record that points to the web services server for Skype for Business Online.
You should not create a DNS record for sip.companyA.com and point it to sipfed.online.lync.com.
This is the federation server for Skype for Business Online and is not used for client sign in.
You should not create a DNS record for sip.companyA.com and point it to webdir.online.lync.com.
This is the web services server for Skype for Business and is used by mobile devices to sign in.
You should not create a DNS record for lyncdiscover.companyA.com and point it to sipdir.online.lync.com. This is the Director server for Skype for Business
Online and it is used by clients to sign in. These clients do not use lyncdiscover.companyA.com.
You should not create a DNS record for lyncdiscover.companyA.com and point it to sipfed.online.lync.com. This is the federation server for Skype for Business
Online and is used for federation connections.
References: https://support.microsoft.com/en-us/help/2566790/troubleshooting-skype-for-business-online-dns-configuration-issues-in
by thanhtq00104 at April 4, 2025, 5:10 a.m.

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