CosmosDB service is a multi-model noSQL, globally distributed, multi-model database service designed for scalable and high performance modern applications. CosmosDB is delivered as a fully managed service with an enterprise grade SLA. 
In this presentation, you will learn:
• How to index documents 
• CosmosDB performance tuning deep dive
• How to create applications using different API (using REST API or programming libraries for several popular languages) 
• Best practices designing applications with Cosmos DB
• Real life examples of modern IoT solutions using CosmosDB