Objective-C Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Objective-C Interview Questions

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What is toll-free bridging and when is it useful?

What are nsautoreleasepool?

Explain types of protocol?

What is the isa member?

What happens if you add your just created object to a mutable array, and you release your object?

Can we implement dealloc in arc? If yes, what is the need to do that?

Who calls dealloc method? Can we implement dealloc in arc? If yes, what is the need to do that?

How we can layout subviews in a view?

Explain application life cycle or application states?

Who calls dealloc method? Can we implement dealloc in arc?

What is an extension?

What is posing in objective c?

Can we have multiple uiwindows in ios?

Explain the difference between #import and #include in objective-c?

What is the difference between #import and #include in objective-c?

Un-Answered Questions { Objective-C }

What is the difference between nsdictionary and nsmutabledictionary?

Tell me something about objective-c blocks?

What is objective c and swift?

What are objective- c blocks?

Is objective c faster than swift?

What is the latest version of objective-c?

What are the 5 performance objectives?

What is posing in objective c?

What is an example of tangible property?

What is data encapsulation in objective-c?

What is strong and weak in objective c?

What is singleton in objective c?

What happen if we send any message to an object which is released?

What is a function file?

What are the different types of protocols?

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