What is the difference between provisioned throughput and serverless in Cosmos DB?
- A Provisioned supports multiple APIs; serverless only supports NoSQL
- B Provisioned reserves RU/s continuously; serverless charges per-RU consumed with no reserved capacity (correct answer)
- C Serverless is cheaper for all workloads
- D Provisioned is single-region only
Shortcut: Provisioned throughput (manual or autoscale) reserves a set RU/s continuously. Serverless billing is purely per-RU consumed with no minimum, ideal for development and sporadic workloads.