What should you configure on DC1?

HOTSPOT
Your network contains an Active Directory domain named contoso.com. All servers run Windows Server 2012 R2. The domain contains two domain controllers.
The domain controllers are configured as shown in the following table.

On DC1, you create an Active Directory-integrated zone named Zone1. You verify that Zone1 replicates to DC2.
You use DNSSEC to sign Zone1.
You discover that the updates to Zone1 fail to replicate to DC2.
You need to ensure that Zone1 replicates to DC2.
What should you configure on DC1?
To answer, select the appropriate tab in the answer area.
Hot Area:

Correct Answer:

Explanation/Reference:
We most allow and configure zone transfers.
To modify zone transfer settings using the Windows interface
1. Open DNS Manager.
2. Right-click a DNS zone, and then click Properties.
3. On the Zone Transfers tab, do one of the following:
. To disable zone transfers, clear the Allow zone transfers check box.
. To allow zone transfers, select the Allow zone transfers check box.
4. If you allowed zone transfers, do one of the following:
. To allow zone transfers to any server, click To any server.
. To allow zone transfers only to the DNS servers that are listed on the Name Servers tab, click Only to servers listed on the Name Servers tab.
. To allow zone transfers only to specific DNS servers, click Only to the following servers, and then add the IP address of one or more DNS servers.
Reference: Modify Zone Transfer Settings