Why are stateless REST API calls advantageous in cloud applications?

Stateless REST API calls are advantageous in cloud applications because they are easy to redeploy and to scale. Each request from a client to the server contains all the information needed to understand the request, and the server does not store any client context between requests. This independence means that any server can handle any request, making it simple to add or remove servers (scale out or in) without affecting ongoing client sessions. It also simplifies redeployment as new versions of the application can be deployed without needing to migrate session data. Incorrect options: They control URL decoding: While URL decoding is part of how REST APIs function, statelessness itself doesn't primarily relate to controlling this process. They rely on data stored on the server for calls: This describes a stateful architecture, which is the opposite of statelessness. Stateless APIs explicitly do not rely on server-side stored data for context between calls. They use HTTPS to implement all calls: HTTPS provides security and encryption, which is a best practice for REST APIs, but it's not a direct consequence or definition of statelessness. Stateless APIs can technically use HTTP, though HTTPS is preferred for production.