Advanced Swift 2 Application Development (Video 11)

This video tutorial provides an in-depth look at Apple's Core Data framework, focusing on understanding core data terminology, setting up a core data manager, creating managed object contexts, and saving data. It covers the creation of NSManagedObjectModel, NSPersistentStoreCoordinator, and NSManagedObjectContext, explaining their roles in managing the model layer of an application. The tutorial also demonstrates how to set up a core data manager using lazy variables and how to save data efficiently.

What is the primary purpose of an NS managed object model in Core Data?

• To define the database schema

• To store user preferences

• To manage user interface elements

• To handle network requests

Which concurrency type is used for the main queue managed object context?

• Private Queue Concurrency Type

• Main Queue Concurrency Type

• Default Queue Concurrency Type

• Background Queue Concurrency Type

What is the role of the Core Data Manager?

• To manage core data functionalities

• To manage the user interface

• To store application settings

• To handle network operations

What is the purpose of using lazy variables in the Core Data Manager?

• To speed up network requests

• To handle user input

• To manage memory efficiently

• To immediately initialize all variables

What is the function of a persistent store coordinator in Core Data?

• To connect to the database

• To store user preferences

• To manage user interface elements

• To coordinate network requests

How does the Core Data Manager handle errors during data saving?

• By printing the error description

• By ignoring them

• By restarting the application

• By sending a notification to the user

What is the significance of the 'MOMD' extension in Core Data?

• It is a network configuration file

• It is the output file for the data model

• It is a settings file

• It indicates a user interface file