Explain what is struct?
What is grand central dispatch ios?
What's the latest version of ios?
Define 'weak' keyword?
What is meaning of 'assign' keyword?
Explain UIApplication life cycle
What is nsuserdefaults?
What is object graph in ios?
What happens if the methods doesn’t exist?
Is core data is thread safe?
What are the location services?
what are the build phases available in Xcode?
How to change the content of your app in order to change the views displayed in the corresponding window?