What is a category and when is it used?
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How to parse xml? Explain
Explain your process for tracing and fixing a memory leak
Explain what is the stack of autorelease pools. How autorelease pool work under the hood?
What is bundle
What is nsmanagedobjectcontext? What are the different concurrency types? Explain them.
How can an operating system improve battery life while running an app?
Differentiate between release and pool drain?
Is a delegate retained?
What is the purpose of using ibaction and iboutlet?
What language is ios written in?
What is mvc in ios swift?
What is datasource in ios?