What is automatic reference counting (arc)?
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Explain the difference between strong and retain.
What is mvc? Mvc architecture of iphone app.
What’s the difference between mkannotation and mkpointannotation?
What happens when we invoke a method on a nil pointer?
Define view object.
Are the nsmanagedobjectcontext queues serial or concurrent?
What is nsoperation and nsoperationqueue in ios?
What is background mode in ios?
What is @dynamic and any place where it is used?
What are the limits of accessibility ?
What is the difference between delegates and notifications in iOS operating system?
What is bridging header in ios?