Alibaba Cloud Certified Associate (ACA) Practice Test 2025 – Complete All-in-One Guide for Exam Success!

The Elastic Load Balancer is vital for ensuring high availability in Alibaba Cloud because it distributes incoming traffic across multiple backend servers or resources. This distribution of load helps prevent any single server from becoming a bottleneck, thereby ensuring that applications remain responsive and accessible even during peak usage times.

High availability is achieved through redundancy; if one server fails, the load balancer can redirect traffic to other operational servers, minimizing downtime. The Elastic Load Balancer also enables automatic scaling, adjusting to traffic loads dynamically, which further enhances availability as additional resources can be provisioned as needed.

While other options like Intelligent Traffic Management also play roles in optimizing performance and managing traffic efficiently, the primary focus of the Elastic Load Balancer is on maintaining continuous service availability through efficient distribution and load management. Cloud Storage Gateway and Cloud Phone serve different purposes that are not directly tied to high availability in the same manner as a load balancer.