Difference between iOS 3 , iOS4, iOS 5, iOS 6, iOS 7 and iOS 8 (What are the new features)
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Explain parent-child context setup?
What are the features is ios 6?
Please explain what is difference strong and weak reference?
What devices will support ios 7?
Does ios support multiple inheritance?
Why is iboutlet weak?
What is polymorphism in ios?
What are the different delete rules that a relationship can have? Which one takes ownership?
What is difference between static library and framework?
How to debug a crash in the auto-release pool?
What is meaning of 'retain' keyword?
If you use location services in your app, will it drain your battery.if yes? How can we avoid?