What is 'notification'?
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What is the difference between release and autorelease?
When a nsfetchrequest fetches an entity object from store, does it fetch all of its data at once?
How is it possible to improve battery life during execution of an application?
What is delegate and protocol in ios?
What are the different store migration options? When are they used? How do they work? What is mapping model?
Explain the difference between coredata & sqlite?
Explain @synchronized ,@dynamic
are you using charlesproxy ? Why/why not ?
What is @synthesize?
Multitasking support is available from which version?
What is storyboard?
Explain difference between release and autorelease?