What performance issues can you face when using coredata?
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Explain what is iphone reference library?
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Which devices will this work with ios?
what are all instruments available in Xcode?
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What are the ways to store data localy on iphone device?
What is the difference between retain & assign in iOS operating system?
What is inactive state in ios?
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What do you know about home screen of ios?
What is the ? In swift?