What is main thread checker?
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Explain the difference between nil and nil?
What is gcd ios?
Explain layer objects?
Explain keywords alloc and new?
What is nsuserdefaults?
What is @dynamic and any place where it is used?
What are different instruments xcode supports for app profiling?
How do you check if your code has memory leaks?
Explain the steps involved in submitting the App to App-Store in iOS operating system?
Is xcode a framework?
Did you used CLRegion? How its working?
What is a model class?