What is ipa?


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More Apple iOS Interview Questions

Can you please explain the difference between nsarray and nsmutablearray?

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Define ipa?

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What are the different store migration options? When are they used? How do they work? What is mapping model?

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Why do we override drawrect: method?

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How can mobile application errors be prevented?

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What is retain counts?

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Is the object retained if I call performSelector:withObject:afterDelay:?

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Explain difference between nil and nil?

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What is main thread checker?

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How are non-atomic and atomic properties different? Which one is the default property for synthesized properties? When would a user operate one over the other?

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Enlist frameworks for cocoa touch?

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“BgTask “ ? how long execute?

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