What is xib?
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Which language is used in ios?
When can you get ios 13?
What does use core data mean in xcode?
what is dispatchQueue?
What are kvo and kvc?
Why to keep user policies at server side rather on device? : IOS Architect
Why core data is faster than sqlite?
Explain concept of notification center, local and remote notifications.
What is arc ? How it works?
How can an operating system improve battery life while running an app?
Explain app bundle?
What is a category and when is it used?