An ECS virtual machine can only run one container.

In the topology diagram of HUAWEI CLOUD Application Performance Management Service, each arrow line represents a call relationship, and different colors represent the health of Apdet (Application Perforsance Index is an industry standard for evaluating application performance developed by the Apdex Alliance) of the call relationship. Which of the following description is correct about the red dotted arrow line?

Which cloud service in the HUAWEI CLOUD HCS Online hybrid cloud solution can achieve cross-AZ-level disaster recovery, with RPO=0 and RTO<30min?

Huawei Container Cloud does not support stateful applications.

What kind of the picture in UML of the following figure?