Your network contains an Active Directory domain named contoso.com.
You install the IP Address Management (IPAM) Server feature on a server named Server1 and select Manual
as the provisioning method.
The IPAM database is located on a server named SQL1.
You need to configure IPAM to use Group Policy Based provisioning.
What command should you run first?
To answer, select the appropriate options in the answer area.
Hot Area:
Answer: 
Explanation:
Need to reinstall IPAM, so need to remove feature first.
I believe that the given answer is wrong.
In the scenario it is said: “The IPAM database is located on a server named SQL1.”
As I see it SQL1 is an external DB (why would anyone name Windows Internal Database (WID) as SQL???)
External database support is introduced in Windows Server® 2012 R2, enabling you to choose Windows Internal Database (WID) or a Microsoft SQL database. This option is not available in Windows Server® 2012. Skip this procedure if your IPAM server is running Windows Server 2012.
https://technet.microsoft.com/en-us/library/dn758112(v=ws.11).aspx
From this we can assume that we are having WS 2012 R2.
Furthermore, in WS2012R2 we can change the provisioning method from manual to GPO-based provisioning, but not the other way around. For that PowerShell cmdlet Set-IpamConfiguration is used.
https://mizitechinfo.files.wordpress.com/2014/12/6.png
Correct answer is:
Set-IpamConfiguration -ProvisioningMethod -Automatic
The given answer is wrong. You can change from manual to GPO, but cannot change from GPO to manual. GPO to manual would require uninstall. Manual to GPO can be done with
set-ipamconfiguration -provisioningmethod automatic
https://technet.microsoft.com/en-us/library/jj590816(v=wps.630).aspx
Bob is correct.
In Server2012 you could not change the provisioning method once setup.
In Server2012R2 you can change the method from Manual to GPO but NOT in the other direction.
I believe the answer to be correct you cannot change provisioning method:
https://technet.microsoft.com/en-us/library/jj878310(v=ws.11).aspx
“The choice of a provisioning method is permanent for the current installation of IPAM Server. To change the provisioning method, you must uninstall and reinstall IPAM Server.
This procedure assumes that you have already connected to the IPAM server that you will provision using the IPAM client console. To connect to a different IPAM server, click Connect to IPAM server on the IPAM Overview page. “
pipaka, bob, and whiskers are correct. A feature that was new in 2012 R2 is that you can change the provisioning method from manual to GPO without uninstalling, however you cannot change from GPO to manual.
“The choice of a provisioning method is permanent for the current installation of IPAM Server. To change the provisioning method, you must uninstall and reinstall IPAM Server.” Answer is correct
Question is tricky, answer is ambiguous.
According to exam guidance, when the edition of the server is not specified we should assume it’s the latest applicable, so 2012 R2 (also the only one that gives the choice of a SQL DB).
According to the book Exam-Ref 70-412 “Configuring Advanced Windows Server 2012 R2 Services”: “EXAM TIP – You can’t change the provisioning method after you complete the Provision IPAM Wizard.
To change from manual provisioning to Group Policy based provisioning or the other way around, you have to uninstall and reinstall IPAM.”
However, provisioning the IPAM server you can see that it is possible to change from Manual to GPO, as per screenshot posted by Pikapoka.
I tried on my lab and it did change from Manual to GPO via PS, however “Set-IpamConfiguration -ProvisioningMethod -Automatic” is not enough as you must specify also the -GPOPrefix parameter:
“PS C:\Users\administrator.XXX> Set-IpamConfiguration -ProvisioningMethod Automatic
Set-IpamConfiguration : GPOPrefix must be specified for automatic provisioning.
At line:1 char:1
+ Set-IpamConfiguration -ProvisioningMethod Automatic
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : InvalidArgument: (MSFT_IPAM_ServerConfiguration:ROOT/microsoft/…erConfiguration) [Set-
IpamConfiguration], CimException
+ FullyQualifiedErrorId : WIN32 87,Set-IpamConfiguration ”
“PS C:\Users\administrator.XXX> Set-IpamConfiguration -ProvisioningMethod Automatic -GpoPrefix “PREFIX”
Confirm
This cmdlet will configure IPAM to use the Group Policy based provisioning method. This will not create required Group
Policy Objects (GPOs). Use the Invoke-IpamGpoProvisioning Windows PowerShell cmdlet for IPAM Server to create these
GPOs. Ensure that GPO prefix specified is unique for this instance of IPAM in the Active Directory domain. Once
configured to use GPO based provisioning, IPAM cannot be reconfigured to use manual provisioning method. Do you want to
continue?
[Y] Yes [N] No [S] Suspend [?] Help (default is “Y”): y
PS C:\Users\administrator.XXX> ”
So, doubt on the correct answer persist.
But between the options given the only command that works is “uninstall-windowsfeature -name ipam”