what is the difference between Xcode, Cocoa and Objective C?
What is the purpose of using ibaction and iboutlet?
Explain the different types of ios application states.
Why uicontrol is provided if we can create custom uiview?
What is a retain cycle?
What is dynamic typing in iOS operating system?
Explain what is the stack of autorelease pools. How autorelease pool work under the hood?
What is a memory leak in ios?
Explain the architecture of iphone? : IOS Architect
Explain about NSURL Connection Delegates
What is nsmanagedobjectmodel?
Name the app sate which it reaches briefly on its way to being suspended in iOS operating system?
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Explain about Viewcontroller lifecycle.