Describe the concept of auto-scaling in cloud computing.

Describe the concept of auto-scaling in cloud computing.

Auto-scaling in cloud computing refers to the ability of a cloud provider to automatically adjust the resources allocated to a particular application or service based on its current demand. This concept allows for the dynamic allocation and deallocation of resources, such as virtual machines or storage, in response to fluctuations in workload. By automatically scaling resources up or down, auto-scaling ensures that the application or service can handle varying levels of traffic or workload without manual intervention. This not only improves performance and availability but also optimizes cost efficiency by only utilizing resources when needed.