Is there any garbage collector concept available in iOS?

463

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How can an operating system improve battery life while running an app in iOS operating system?

416

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What are layer objects in iOS operating system?

462

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What is notification in iOS?

496

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Explain how an autorelease pool works at the runtime level in iOS

540

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What is sandbox in iOS operating system?

592

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What is categories in iOS?

514

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Explain the correct way to manage Outlets memory in iOS.

455

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What is difference between synchronous and asynchronous in web request in iOS operating system?

462

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What are all the difference between iOS3, iOS4 and iOS5?

451

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What is delegate pattern in iOS?

490

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What are the App states in iOS operating system? Explain them

438

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Define view object in iOS operating system?

475

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Explain how the push notification works in iOS operating system?

457

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Explain the steps involved in submitting the App to App-Store in iOS operating system?

489

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