What is category and class extension?
What are the different store migration options? When are they used?
Explain the difference between NSOperationQueue concurrent and non-concurrent in iOS operating system?
Explain the difference between copy and retain?
What is nspersistentstorecoordinator?
How to find the memory leaks in mrc?
How is it possible to improve battery life during execution of an application?
What is ios application life cycle?
What is categories in iOS?
What is thread in ios?
What is managed object context?
How to change the content of your app in order to change the views displayed in the corresponding window?
What is oops in ios?
Explain about Viewcontroller lifecycle.
What is plist file and explain about it is usage in iOS operating system?