An enterprise uses a shared load balancer to distribute traffic across backend servers and Auto Scaling to automatically scale the number of servers as traffic changes. Which of the following statements is true?
A.
You can set load balancing algorithms to evenly distribute incoming traffic to servers in an AS group.
B.
Incoming traffic can be distributed across regions.
C.
Instances in the Auto Scaling (AS) group need to be manually added to the backend server group one by one.
D.
The AS group automatically removes unhealthy servers when health check is disabled.
Option A is correct . Huawei Cloud Elastic Load Balance provides several traffic-distribution algorithms, including weighted round robin, weighted least connections, and source IP hash for shared load balancers. When backend servers have equal weights under weighted round robin, they receive an equal proportion of requests, providing the even traffic distribution described in the question.
Auto Scaling and ELB are explicitly integrated. When an AS group is associated with a load balancer, Huawei Cloud automatically associates newly added ECS instances with the load balancer and removes the association when instances leave the AS group. Therefore, option C is false; administrators do not need to manually register each dynamically created instance one by one.
Option B is incorrect in this context because the load balancer and its AS resources operate within the applicable regional/VPC deployment architecture; a standard shared ELB is not a mechanism for arbitrary cross-region backend distribution. Option D is also false because detecting unhealthy instances depends upon an enabled health-check mechanism. Disabling health checking removes the basis for making that health determination.
Reference topics: Elastic Load Balance; Auto Scaling and ELB Integration; Backend Servers; Load Balancing Algorithms.
===============
Contribute your Thoughts:
Chosen Answer:
This is a voting comment (?). You can switch to a simple comment. It is better to Upvote an existing comment if you don't have anything to add.
Submit