Define 'atomic' keyword?
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What is automatic reference counting (arc)?
What is push notification?
What is ios selector?
What is nsfetchedresultscontroller? How do you turn on content monitoring?
Have you uploaded app on appstore? What is the process?
Is core data is thread safe?
Explain place holder constraint
what is the difference between nonatomic & atomic ? which is thread safe and why
Where can you test Apple iPhone apps if you don’t have the device?
Define fast enumeration?
Explain layer objects?
What are ibeacons?