Can you explain ios design patterns?
What is category and extension in ios?
What is meaning of 'retain' keyword?
What is @dynamic and any place where it is used?
What are the design patterns in ios?
Enlist frameworks for cocoa?
Difference between retain and assign ?
What is the viper?
Is the object retained if I call performSelector:withObject:afterDelay:?
Explain difference between release and autorelease?
Explain about Viewcontroller lifecycle.
How can an operating system improve battery life while running an app in iOS operating system?
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What is the architecture of ios?