What are the location services?
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What is polymorphism in ios?
Why core data is faster than sqlite?
Which is the super class of all view controller objects?
What is the use of the UI Automation API?
What is nonatomic?
What is latest ios version?
What is advantage of categories? What is difference between implementing a category and inheritance?
Explain place holder constraint
What are the 7 osi layers?
Explain layer objects?
Arc is compile time or run time feature?
Difference between nil and Nil.