Apple iOS Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Apple iOS Interview Questions

Questions Answers Views Company eMail

What is difference between performblock: and performblockandwait:?

907

What are the Different types of persistent stores?

853

What is nsmanagedobject?

805

What is messaging? How does the runtime handle message passing? What is message forwarding?

930

What is nspersistentstore?

930

What is nsuserdefaults?

837

What is nsfetchedresultscontroller?

891

Explain parent-child context setup. How does it work?

775

Who calls the dealloc strategy? Would we be able to implement dealloc in arc? In the event that indeed, what is the need to do that?

847

What is message forwarding?

817

What is the benefit of setting reuseidentifier to a non-nil value?

756

What are the different store migration options? When are they used?

814

What is nsmanagedobjectcontext?

857

What performance issues can you face when using coredata?

900

How do you setup/initialise a core data stack in your application?

869

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Un-Answered Questions { Apple iOS }

What is @synthesize?

895

What is difference between atomic and nonatomic in ios?

781

What are transient properties?

832

How will you implement sets and the intersection operation? Complexity?

1332

Explain the difference between copy and retain?

932

What is the difference between inheritance and category?

843

What is a weak var?

844

What is inactive state in ios?

862

What do you know about the ios kernel?

855

Are the nsmanagedobjectcontext queues serial or concurrent?

812

What is id in ios?

810

Explain me how to parse json?

803

Explain application states

1291

Explain how the push notification works in iOS operating system?

885

What is uikit framework in ios?

789

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