iPhone interviews:

Topics generally asked in face to face iPhone interviews:

1. Category
2. Property
3. NSOperationQueue
4. NSCoder
5. Memory Management

           a) Retain/Strong

           b) Assign

           c) Release/Autorelease

           d) Init/Alloc

   

    6. Difference between NSString and NSMutableString?

    7. Difference between a NSArray and a NSMutableArray? 

    8. Difference between JSON and xml?

    9. Advantages and disadvantages of synchronous and asynchronous connections.

   10. Difference between Automic and Nonautomic?

   11. Difference between ipa and app?

   12. NSPredicate with example.

   13. Steps to upload iOS app.

   14. MVC in obj C

   15. Polymorphism in Obj C

   16. Delegate

   17. Synthesize

   18. Push notification

   19. Memory Leak

   20. table view protocols

   21. Core data versus sqlite

   22. Singleton class

   23. NSThread

   24. Difference between ARC and MRC?

   25. Where to use Id Type?