What is weak and strong in ios?
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What is urlsession?
Explain difference between nil and nil?
What is a retain cycle?
Is ios multithreading?
What compilers apple using ?
Explain difference between release and autorelease?
What is the protocol in ios?
Screen resolution of iPhone & iPad
What do you know about home screen of ios?
How are non-atomic and atomic properties different? Which one is the default property for synthesized properties? When would a user operate one over the other?
Difference between retain and assign ?
How you can add frameworks in xcode project?