What unique cloud metrics are monitored by CloudMonitor?

The correct choice highlights the core capability of CloudMonitor in tracking essential performance metrics related to key cloud resources. Specifically, CloudMonitor effectively oversees the operational health and performance of various components of an Alibaba Cloud infrastructure, such as Elastic Compute Service (ECS) instances, Relational Database Service (RDS) databases, and Server Load Balancers (SLB).

By monitoring ECS instances, CloudMonitor provides insights into CPU, memory usage, and network traffic, enabling users to optimize application performance and resource allocation. For RDS databases, it assesses metrics related to query performance, connection counts, and storage usage, which are crucial for maintaining the efficiency and reliability of database operations. SLB monitoring allows for visibility into load distribution and traffic management, ensuring that applications remain resilient and can handle fluctuating user demands.

In contrast, while database performance and client sessions, user access logs and API requests, or storage capacity and geographic locations are important metrics in their own regard, they do not encompass the breadth and integration of resource monitoring that CloudMonitor specifically emphasizes. Thus, the focus on ECS, RDS, and SLB encapsulates the unique cloud metrics that are most beneficial for comprehensive cloud observability and management within the Alibaba Cloud environment.