Which statement is true about Amazon EC2 Auto Scaling?

Amazon EC2 Auto Scaling is designed to help you maintain application availability and allows you to automatically adjust the number of EC2 instances in your application based on demand. The ability of EC2 Auto Scaling to provision new instances with load balancers across multiple Availability Zones is a key feature that enhances application resilience and availability.

When Auto Scaling provisions instances, it can distribute them across multiple Availability Zones to improve fault tolerance. This means that if one Availability Zone goes down, instances in another Availability Zone can continue to serve traffic, thus maintaining availability for users. The integration with load balancers is also crucial. When new instances are launched, they can be automatically registered with a load balancer, allowing them to seamlessly take on traffic as they come online. This coordinated interaction is central to ensuring that applications can scale effectively and efficiently respond to changes in demand.

In summary, the correct statement emphasizes the capability of EC2 Auto Scaling to enhance both the deployment and operational efficiency of applications through automated scaling across multiple Availability Zones, aided by load balancers. This ensures high availability and reliability in handling workloads.