What is retain in ios?
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What is the difference between synchronous & asynchronous task ?
How do you create a fetched property?
Why is delegate weak in ios?
What are the location services?
What are the differences between categories and extensions?
An app is loaded into memory but is not executing any code. In which state will it be in?
Explain the significance of autorelease?
Explain shallow copying and depth copying.
What are ios categories?
Give example scenarios when an application goes into inactive state?
How to fix tableviewcell dequeue issue ?
Garbage collector in iphone?