Explain Core Data.

Core data is one of the most powerful frameworks provided by Apple for macOS and iOS apps. Core data is used for handling the model layer object in our applications. We can treat Core Data as a framework to filter, modify, save, track the data within the iOS apps. Core Data is not a relational database.

Using core data, we can easily map the objects in our app to the table records in the database without knowing any SQL. Core data is the M in MVC structure.