Câu 27: ACP-Cloud: ACP Cloud Computing Certification

Alibaba Cloud Server Load Balancer (SLB) provides service for distributing traffic among multiple ECS instances. SLB can expand the application system’s service capacity through traffic distribution, and improve the system’s availability by eliminating SPoFs (Single Points of Failure). Which of the following statements are correct? (Choose three.)

1. A. When recreating an SLB instance that has an Internet IP address, a new Internet IP address will be assigned to the SLB instance. — đáp án hiện tại
2. B. Before using SLB to provide external services, make sure that you have installed and correctly configured the SLB agent on all of the backend ECS instances.
3. C. One of SLB’s features is the Health Check. If some of the backend ECS instances are down, whereas other backend ECS instances can still provide the service, then the system can continue to work normally. — đáp án hiện tại
4. D. SLB provides a function to automatically synchronize data among backend ECS instances using rsync remote synchronization technology. — đáp án hiện tại