👉 "600 Stations, 4 minutes x RTO." This means an application that can handle more than 600 different types of requests within a single second. The term "x RTO" stands for Request Processing Time. It's the time it takes to process a request and ensure all necessary information is passed along before it goes through to the server. In this context, the application needs to be fast and efficient in processing requests as quickly as possible. So in summary: The word 600 Stations refers to an application that can handle more than 600 different types of requests within a single second, while x RTO stands for Request Processing Time.