Objective-C Interview Questions
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Can a static library (.a) contain resources like images, sound files etc?

1

What is the difference between underscore and self (i.e self.xx and _xx) ?

1

When might you use a cfarray/dictionary instead of a nsarray/dictionary?

1

What is a process and thread?

1

What are blocks and how are they used?

1

Can I write some c++ function in same .m file? Will it compile? If no, what changes should I do to compile it?

1

What are the adavantages of gcd over nsthread?

1

What is class extension? Why do we require them?

1

When to use nsautoreleasepool??

1


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Un-Answered Questions { Objective-C }

How does dispatch_once manages to run only once?

1


When might you use a cfarray/dictionary instead of a nsarray/dictionary?

1


Can I use objective c in swift?

1


Explain how the class “implementation” is represented in objective-c?

1


How do I create a bridging header file?

1






What are blocks and how are they used?

1


What is synthesized in objective-c?

1


What is better objective c or swift?

1


Are callbacks closures?

1


What is abstract class in objective c?

1


Is objective c and c the same?

1


What is hashable?

1


What is a protocol in objective c?

1


What do you mean by @synthesize and @dynamic in the objective-c?

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What is 'protocol' on objective c?

1