Which service allows automated scaling in OCI based on demand?

The service that provides automated scaling in Oracle Cloud Infrastructure (OCI) based on demand is Auto Scaling. This feature allows you to automatically adjust the number of compute instances in your application based on the workload. By setting scaling policies, users can define thresholds such as CPU utilization or network traffic, and Auto Scaling will ensure that your compute resources adapt dynamically to meet the application's demands.

This automatic adjustment helps to optimize resource utilization, maintain application performance, and control costs by scaling down when demand decreases. It is particularly useful for applications with variable workloads, ensuring that you have sufficient resources during peak times while minimizing costs during quieter periods.

The other services listed do not offer automated scaling capabilities. Object Storage is focused on storing and managing unstructured data, Block Storage provides persistent storage for compute instances, and Load Balancer helps distribute traffic among multiple instances but does not inherently manage their scaling.