Soru

A medical technology company is designing a new patient monitoring system that registers real-time telemetry from wearable devices (OLTP workload). The system must scale to ingest up to $100,000$ writes per second. The telemetry data must be buffered and cached for real-time visualization with less than $10\text{ ms}$ read latency. The cache requires high availability, automated failover, and data persistence to survive node failures. The historical telemetry data must be persisted in a database, and the architecture must ensure horizontal scaling of read operations during peak diagnostic hours. Finally, the company requires a disaster recovery strategy to a secondary AWS Region with a Recovery Time Objective (RTO) of less than $5\text{ minutes}$ and a Recovery Point Objective (RPO) of less than $1\text{ minute}$. Which of the following database and storage strategies meets these requirements with the lowest operational complexity?