What is a major benefit of using Alibaba Cloud's Resource Manager?

The choice highlighting resource management and access permissions is correct because Alibaba Cloud's Resource Manager is specifically designed to help users efficiently handle their cloud resources across various Alibaba Cloud services. One of its key features is the ability to manage resource quotas, ensuring that users can limit and allocate resources based on their organizational needs or project requirements. This is particularly important in environments where resource usage needs to be controlled to prevent overspending or resource exhaustion.

Furthermore, Resource Manager allows users to define and manage access permissions for different users and services. This means that organizations can enforce security best practices by ensuring that only authorized personnel can modify or access specific resources. By having robust management capabilities regarding resource quotas and permissions, users can enhance security, maintain compliance with regulations, and streamline cloud resource utilization.

Other options do not align with the primary functions of Resource Manager. While database services, network performance optimization, and server migrations are essential aspects of cloud management, they are typically handled by different services or tools within the Alibaba Cloud ecosystem rather than the Resource Manager itself. This makes the option centered on resource management and access permissions the correct answer.