iOS 5 App Development 2 Skill Assessment

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iOS 5 App Development 2 MCQ

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Focused questions for skill assessment

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Premium questions with correct answers

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Free Sample Questions for iOS 5 App Development 2

What does a view (UIView) represent?

NSArray; no - it's immutable.

A rectangular area

Points - to achieve device-independence

Immutable. But there are many methods that take an NSString and returned a modified one. This is fast and preferable to using NSMutableString.

Answer:
A rectangular area

Talk about BOOL variables.

Controls how the model is presented onscreen.

NO is zero; YES is anything else.

Properties; instance variables

'Keep this in the heap as long as someone else points to it strongly. If it gets thrown out of the heap - set my pointer to it to nil.'

Answer:
NO is zero; YES is anything else.