What feature of AWS Lambda allows it to operate without server management?

The feature of AWS Lambda that enables it to operate without server management is the fully managed server infrastructure. This characteristic allows users to focus solely on their application code rather than on the underlying hardware or virtual servers. AWS Lambda abstracts away the server layer, which means that users do not have to worry about provisioning, scaling, patching, or managing servers. Instead, when you deploy functions in AWS Lambda, the service automatically handles the compute fleet needed to execute your code, providing a seamless experience that adjusts to incoming requests.

This design facilitates a serverless architecture, where developers can simply upload their code and let AWS take care of the execution environment, scaling based on the number of requests without any manual intervention. This allows for a more efficient deployment process and can significantly reduce operational overhead.