How can we achieve singleton pattern in iOS?
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What is delegate?
What is reuse identifier?
What is UITableView?
Is it possible to write a program without using nib file
What are the cpu architectures supported by ios devices?
What is an NSOperationQueue and how/would you use it in iOS operating system?
What is storyboard?
What is bundle
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What are the different store migration options? When are they used?
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What is reference count in ios?