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Question

You have an on-premises Active Directory Domain Services (AD DS) domain that syncs with an Azure Active Directory (Azure AD) tenant. The on-premises network is connected to Azure by using a Site-to-Site VPN.
You have the DNS zones shown in the following table.

You need to ensure that names from fabrikam.com can be resolved from the on-premises network.
Which two actions should you perform? Each correct answer presents part of the solution.
NOTE: Each correct selection is worth one point.

Proposed answer
  • A. Create a stub zone for fabrikam.com on DC1.
  • B. Create a conditional forwarder for fabrikam.com on DC1.
  • C. Create a secondary zone for fabrikam.com on DC1.
  • D. Deploy an Azure virtual machine that runs Windows Server. Modify the DNS Servers settings for the virtual network.
  • E. Deploy an Azure virtual machine that runs Windows Server. Configure the virtual machine as a DNS forwarder.

 

Suggested answer
  • A. Create a stub zone for fabrikam.com on DC1.
  • E. Deploy an Azure virtual machine that runs Windows Server. Configure the virtual machine as a DNS forwarder.

 

Correct answer

The suggested answer is incorrect

Correct answer is:

  • B. Create a conditional forwarder for fabrikam.com on DC1.
  • E. Deploy an Azure virtual machine that runs Windows Server. Configure the virtual machine as a DNS forwarder (168.63.129.16).

--

  • A client VM sends a name resolution request for azsql1.database.windows.net to an on-premises internal DNS server.
  • A conditional forwarder is configured on the internal DNS server. It forwards the DNS query for database.windows.net to 10.5.0.254, which is the address of a DNS forwarder VM.
  • The DNS forwarder VM sends the request to 168.63.129.16, the IP address of the Azure internal DNS server.
  • The Azure DNS server sends a name resolution request for azsql1.database.windows.net to the Azure recursive resolvers. The resolvers respond with the canonical name (CNAME) azsql1.privatelink.database.windows.net.
  • The Azure DNS server sends a name resolution request for azsql1.privatelink.database.windows.net to the private DNS zone privatelink.database.windows.net. The private DNS zone responds with the private IP address 10.5.0.5.

Reference

 

Comments
syu31svc

Highly Voted 1 year, 8 months ago 

Selected Answer: BE

B and E are correct as supported by link given

upvoted 8 times 

Doman01

Highly Voted 1 year, 4 months ago 

https://learn.microsoft.com/en-us/answers/questions/181776/azure-private-dns-zone-resolution-from-on-prem

According to this question from 2020 and link provided it should be BE BUT 

https://learn.microsoft.com/en-us/azure/dns/private-resolver-hybrid-dns

This one is new thing and will probably be used instead in the future so I believe we will have questions about it instead of this one

upvoted 6 times 

Webcatman

Most Recent 2 weeks ago 

Selected Answer: BE

https://learn.microsoft.com/en-us/azure/dns/private-resolver-hybrid-dns

upvoted 1 times 

Ksk08

4 weeks ago 

B and E

upvoted 1 times 

skycrap

1 year, 5 months ago 

Selected Answer: BD

I think B and D. 1: Deploy an Azure virtual machine that runs Windows Server. Modify the DNS Servers settings for the virtual network. This is default when you deploy one or more dns servers on a Azure vnet 2: Create a conditional forwarder for fabrikam.com on DC1. Because the question was: You need to ensure that names from fabrikam.com can be resolved from the on-premises network. You don’t need configure the new virtual machine in Azure as a DNS forwarder because the question only ask: ensure that names from fabrikam.com can be resolved from the on-premises network.

upvoted 3 times 

kijken

2 years ago 

Why E?

upvoted 2 times 

Leocan

2 years ago 

A DNS forwarder is a Virtual Machine running on the Virtual Network linked to the Private DNS Zone that can proxy DNS queries coming from other Virtual Networks or from on-premises.

upvoted 9 times