What is autorealease pool?
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What is managed object context?
Describe what “app thinning” means ?
If any app can run in the background, what about battery life?
Is appdelegate a singleton?
Explain what is garbage collection?
What is the purpose of UIWindow object in iOS operating system?
Which is the application thread from where uikit classes should be used?
What is swift and what is objective-c?
When is an app said to be in active state?
What is bundle id?
Major difference between delegate and notification?
What is the viper?