What is an NSOperationQueue and how/would you use it in iOS operating system?
How do I exit safe mode on my iphone?
Arc is compile time or run time feature?
Explain parent-child context setup. How does it work?
Explain the difference between developer and enterprise developer accounts?
Explain the difference between cocoa and cocoa touch?
What is messaging? How does the runtime handle message passing? What is message forwarding?
What is ios layer?
How to measure your application's performance on an iphone device?
What is difference between 'protocol' and 'delegate'?
What are different instruments xcode supports for app profiling?
How can a user respond or react to the state transitions on the app?
What is meaning of 'assign' keyword?
What is race condition in ios?
Explain how an autorelease pool works at the runtime level in iOS
