Which AWS service would you use for serverless application deployment?

The chosen answer, AWS Lambda, is the correct choice for serverless application deployment because it allows developers to run code without provisioning or managing servers. AWS Lambda automatically handles the underlying infrastructure, scaling, patching, and availability, enabling a focus on writing and deploying the application logic. When a developer uploads their code to Lambda, it executes the code in response to events such as changes in data, HTTP requests, or triggering from other AWS services, making it an ideal framework for serverless architectures.

In contrast, AWS EC2 is designed for running virtual servers, which requires more management and configuration, making it not serverless. AWS Elastic Load Balancer, while important for distributing traffic among multiple servers, does not itself provide a deployment mechanism for applications. AWS CloudFormation is a service for provisioning infrastructure as code, which does not inherently facilitate serverless application deployment but rather manages resources in a more traditional server model.