What is an NSOperationQueue and how/would you use it in iOS operating system?
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What are properties in ios?
How to parse json? Explain
Can a static library (.a) contain assets like pictures, sound documents and so on.?
What is meaning of 'copy' keyword?
Explain stack and heap?
Enlist the methods to achieve concurrency in ios?
Different types of persistent stores? Which all types can we have on ios?
How much do ios developers get paid?
What are layer objects and what do they represent in iOS operating system?
What is thread safe?
What is retain counts?
What is nsfetchedresultscontroller? How do you turn on content monitoring?