What is iOS?2 1048
What's fast enumeration?2 997
What are the differences between categories and extensions?1 825
What is a singleton?1 720
Name and explain the iOS app states.1 865
What are the memory management rules?1 806
Name the memory management rules and their related methods.1 827
Explain why delegates and notifications are different.1 779
What is lazy loading?1 860
Explain shallow copying and depth copying.1 712
What is a struct?1 829
Is the object retained if I call performSelector:withObject:afterDelay:?1 1207
What is posing in iOS?1 1682
Where do you test the developed apps if you do not have the device?1 705
Does iOs supports multitasking?1 769
What happens when you invoke a method on a nil pointer?
How to do upload of large sized video file to server ? while uploading user presses “Homebutton” How long will execute?
How to convert MVC design pattern to MVVM design patterns
Explain what is the stack of autorelease pools. How autorelease pool work under the hood?
Explain which all events will perform an ios application in background
DB updation when app new version comes ?
Explain Apple push notification
Explain @synchronized ,@dynamic
How will you implement sets and the intersection operation? Complexity?
what is the difference between nonatomic & atomic ? which is thread safe and why
When dealing with property declarations, what is the difference between atomic and non-atomic?
Explain how an autorelease pool works at the runtime level
what is your preferred programming language? Why? How long will it take you to learn a new programming language?
Difference b/w collectionView & uitableview?
Explain application states