Pergunta de entrevista da empresa TIAA

1. Blocks vs Closures, why do apple implemented closures 2. Notification vs Delegates 3. NSURLConnection vs NSSession 4. Autolayout and size classes 5. Optional chaining 6. Retain cyles 7. Swift 2.0 vs Swift 3.0 8. How does video player work...two types to design it: AVPlayer and MPMoviePlayer 9. Blocks vs NSthread vs GCD 10. Reload only particular cell of table view 11. *App life cycle of iOS, view life cycle 12. Weak vs Strong 13. Shared instance 14. In app purchase 15. Favourite project