A. Server Load Balancer In a scenario where your website experiences high traffic volume with sudden spikes for a very short time, Server Load Balancer (SLB) can efficiently manage traffic peaks and maintain a consistent user experience. SLB distributes incoming traffic across multiple backend servers or instances, allowing it to balance the load and handle sudden spikes in traffic. This helps ensure that your website remains responsive and available to users even during peak traffic periods. Server Load Balancer is a common tool for enhancing the availability and performance of web applications in such scenarios.

A. Server Load Balancer In a scenario where your website experiences a high volume of traffic with sudden spikes for a very short time, Server Load Balancer (SLB) can efficiently manage the traffic peaks and maintain a consistent user experience. SLB can distribute incoming traffic across multiple backend servers (such as ECS instances) to ensure that the load is balanced, and it can handle sudden spikes in traffic by directing requests to the available backend servers. This load balancing mechanism helps in maintaining the website's performance and responsiveness during traffic fluctuations, ensuring a consistent user experience even during peak periods.

In general, if the website experiences predictable traffic patterns, server load balancing may be a more appropriate solution. However, if the traffic patterns are unpredictable or may experience sudden spikes, auto scaling may be a better choice.

https://www.alibabacloud.com/product/auto-scaling Auto Scaling is a service to automatically adjust computing resources based on your volume of user requests. When the demand for computing resources increase, Auto Scaling automatically adds ECS instances to serve additional user requests, or alternatively removes instances in the case of decreased user requests.

Server Load Balancer

It should be A. Server Load Balancer