Microsoft Certified: Azure Fundamentals (AZ-900) Practice Exam

The correct answer is determined by identifying the specific Azure service designed explicitly for transferring data to the cloud. The Data Migration Service is tailored for this purpose, facilitating the movement of on-premises data to Azure. This service provides a structured way to assess, plan, and implement data migrations, ensuring a seamless transition and minimizing downtime during the process. Its features aid in the migration of databases, which is critical for organizations looking to leverage cloud resources effectively. While other options mention services related to data, they don't focus specifically on the act of migration. A data backup service, for instance, primarily focuses on creating copies of data for recovery purposes rather than moving it to the cloud. The term "data immigration service" does not pertain to an actual Azure service and appears to be a misunderstanding. Thus, the focus on the Data Migration Service reflects its dedicated role in facilitating data transitions to Azure, making it the most appropriate answer.