What are all the difference between iOS3, iOS4 and iOS5?
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What is the difference between atomic and nonatomic properties? Which is the default for synthesized properties?
What is foundation framework in ios?
Explain about design patterns in iOS
Explain How to access document directory
What is nsmanagedobjectcontext? What are the different concurrency types? Explain them.
what is universal Application?
. List down app's state transitions when it gets launched.
How we can wait for some thread to finish before starting another?
What is synchronous vs. Asynchronous in gcd ?
Explain formal protocols?
What is messaging? How does the runtime handle message passing?
What is dynamic dispatch ios?