What is the biggest change with ios 7?
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What are blocks in ios?
What are the different store migration options? When are they used?
Differentiate between release and pool drain?
What is dynamic in iOS operating system?
What is mvvm in ios swift?
What is the difference between strong and retain.
What is push notification?
Define iterator protocol?
What’s the difference between mkannotation and mkpointannotation?
Explain parent-child context setup?
What is meaning of 'nonatomic' keyword?
. How do you change the content of your app in order to change the views displayed in the corresponding window?