What is nsfetchedresultscontroller? How do you turn on content monitoring?
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Explain the difference between NSOperationQueue concurrent and non-concurrent in iOS operating system?
What are b-trees?
How is the app delegate is declared by Xcode project templates?
What is inactive state in ios?
Suppose I get a “blog returned invalid data” error message. What do I do?
What does ios stand for in texting?
Explain difference between mrc and arc?
Explain me what is arc? How it works?
What are the different types of ios application states?
What are ios apps coded in?
What are the features of ios?
Explain how the push notification works in iOS operating system?