How to hide images in ios?
Are document objects required for an application? What does they offer?
Who calls the dealloc strategy?
Explain difference between mrc and arc?
How do you create a fetched property?
What is auto-layout?
Define fast enumeration?
What is background state in ios?
What is difference between atomic and nonatomic in ios?
What is the difference between copies & retain in iOS operating system?
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What are the differences between categories and extensions?
Difference between coredata & sqlite?
What is the first responder and responder chain?