In this chapter, you have learned about another serverless Azure component named Azure Cosmos DB. You saw multiple database models that this service supports, and also multiple different features, such as geo-redundancy and the ability to easily scale up and introduce new read regions, where data will be replicated. What is more, you are now aware of multiple consistency models and how to change them in the Azure portal.
In the next chapter, you will learn about another hot topic: reactive architecture with Azure Event Grid.
