Cosmos DB Consistency Levels
The lesson explains the five consistency levels in Azure Cosmos DB: strong, eventual, session, bounded staleness, and consistent prefix. Each level offers a different trade-off between data consistency and performance, from the slow but guaranteed strong consistency where all users see identical data, to the fast but chaotic eventual consistency where changes appear in random order. Session consistency is highlighted as the default and recommended choice for most scenarios, providing strong consistency within a session while maintaining good performance.
