1 / 5 Application is running in foreground and receiving events.What is the current App State?
2 / 5 All Swift classes must inherit from which root class?
3 / 5 iOS remote push notification is introduced by apple in which version?
4 / 5 What type of object are Swift Structures?
5 / 5 A category can be used to override other methods in the class, but it's not considered good programming practice.