Is the object retained if I call performSelector:withObject:afterDelay:?
What happens if the methods doesn’t exist?
Difference between nil and Nil.
What is App Bundle?
Explain me what is fast enumeration?
Explain your process for tracing and fixing a memory leak
What is the first responder?
How to run xcode and other tools with the iphone sdk?
What are the different store migration options? How do they work?
Explain the significance of autorelease?
What is the purpose of reuseidentifier? What is the benefit of setting it to a non-nil value?
Is a delegate retained?
Compare and contrast the different ways of achieving concurrency in os x and ios.