A company is migrating on-premises SMB data and ACLs to the Azure NetApp Files storage...

When migrating SMB data and Access Control Lists (ACLs) to Azure NetApp Files, Active Directory integration is necessary for user authentication and permission management. The following two solutions are supported:

Active Directory Domain Services (AD DS) (A): AD DS is the traditional, on-premises Active Directory solution that provides authentication and authorization services. Azure NetApp Files can integrate with on-premises AD DS, enabling the migration of SMB data along with the corresponding ACLs.

Azure Active Directory Domain Services (Azure AD DS) (C): Azure AD DS provides managed domain services in the cloud and supports Active Directory features such as domain join, group policies, and LDAP. It is compatible with Azure NetApp Files, allowing seamless migration and access control management for SMB workloads in the cloud.

Azure Active Directory (Azure AD) (B)andAzure Identity and Access Management (D)focus more on user identity management rather than direct SMB file system integration, and they are not suitable for handling file system ACLs and SMB shares.