Explanation:
In the Administering Windows Server Hybrid Core Infrastructure materials (AZ-800), the prescribed sequence for enabling VM domain-join to Azure Active Directory Domain Services (Azure AD DS) is to first prepare networking, then deploy the managed domain, and finally point DNS to that domain. The guide explains that Azure AD DS is a managed domain and that you must deploy it into a virtual network: "Azure AD DS provides domain join, group policy, and LDAP/NTLM/Kerberos without deploying domain controllers. The managed domain is associated with an Azure virtual network." It further directs that VMs can only discover and join the managed domain when the VNet's DNS points to the Azure AD DS IPs: "To enable name resolution for domain join, configure the virtual network DNS servers to the IP addresses of the Azure AD DS managed domain." Therefore, the correct, exam-aligned order is:
* Create an Azure virtual network (the target network/subnet into which the managed domain will be placed).
* Create an Azure AD DS instance (the managed domain is deployed into that VNet and provides two IP addresses).
* Modify the settings of the Azure virtual network to use those IP addresses as custom DNS servers so that new or existing Azure VMs in that VNet can locate and join the domain. Installing the AD DS role or running its wizard is not required for Azure AD DS, and Azure AD Connect is optional for identity sync but not required for VM join.