What is nsuserdefaults?
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Who is the developer of ios?
Explain parent-child context setup. How does it work? What are the advantages?
What is the first responder?
Is core data is thread safe?
Push notification working in ios?
Enlist frameworks for cocoa touch?
What is iphone sdk?
What is the difference between viewdidload and viewwillappear?
What is gcd? How is it used?
what is the difference between Xcode, Cocoa and Objective C?
What’s the difference between an “app id” and a “bundle id” and what is each used for?
Have you uploaded app on appstore? What is the process?