Which service assists in monitoring the migration process?

The correct choice for monitoring the migration process is the Azure Monitor service. Azure Monitor is a comprehensive service that helps track and analyze the performance and health of Azure resources. It provides detailed insights by collecting metrics and logs from various Azure services during the migration process. This allows database administrators to ensure that the migration is progressing as expected and to identify any potential issues that may arise.

The features of Azure Monitor, such as alerts and dashboards, enable users to visualize the migration progress, monitor resource utilization, and assess the overall health of the environment during migration. This capability is crucial as it enables proactive management, ensuring smooth transitions and the successful implementation of databases in Azure.

In contrast, while other options like the Self-hosted Integration Runtime or Data Migration Assistant may assist in specific parts of the migration process, they do not provide the extensive monitoring capabilities that Azure Monitor does. Thus, Azure Monitor stands out as the most suitable service for monitoring the overall migration process effectively.