Your network contains an Active Directory domain named contoso.com. All domain controllers run Windows
Server 2012 R2. One of the domain controllers is named DC1.
The DNS zone for the contoso.com zone is Active Directory-integrated and has the default settings.
A server named Server1 is a DNS server that runs a UNIX-based operating system.
You plan to use Server1 as a secondary DNS server for the contoso.com zone.
You need to ensure that Server1 can host a secondary copy of the contoso.com zone.
What should you do?
A.
From DNS Manager, modify the Advanced settings of DC1.
B.
From DNS Manager, modify the Zone Transfers settings of the contoso.com zone.
C.
From Windows PowerShell, run the Set-DnsServerForwardercmdlet and specify the contoso.com zone as a
target.
D.
From DNS Manager, modify the Security settings of DC1.
Explanation:
There are two ways that a secondary DNS server can be added. In both scenarios you will need to add the new
server to the Forwarders list of the primary Domain Controller.
1. The Set-DnsServerForwarder cmdlet changes forwarder settings on a Domain Name System (DNS) server.
2. From the primary server, open DNS Manager, right click on the server name and select Properties. Click on
the Forwarders tab and click the Edit button in the middle of the dialogue box.
Why not b ?
The question mentioned a secondary zone and not a forwarder
It’s not C.
Set-DNSServerForwarder configures a DNS server to forward a DNS query to another DNS server if it did NOT have the requested record locally. Nothing to do with Primary and Secondary DNS server replication.
https://docs.microsoft.com/en-us/powershell/module/dnsserver/set-dnsserverforwarder?view=win10-ps
I believe its A. In order to setup a UNIX/LINUX server as a secondary server, you must configure BIND. You also have to add it as a Name Server (NS) to the DNS zone but that’s not one of the options.