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 the extension of ios files?

906

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

735

What is core data?

781

How do you check if your code has memory leaks?

857

How to use core data objects between two threads?

816

When a nsfetchrequest fetches an entity object from store, does it fetch all of its data at once?

861

Would I be able to keep in touch with some c++ work in the equivalent .m record? Will it compile? Assuming no, what changes would it be a good idea for me to do to compile it?

709

What is plist?

891

Are the nsmanagedobjectcontext queues serial or concurrent?

809

What are the different store migration options? When are they used? How do they work? What is mapping model?

739

Explain parent-child context setup?

770

What are the Common reasons for app rejection from app store review process?

844

In nsfetchrequest can we fetch only a selective few attributes of an entity? How?

796

Can you pass same core data objects between different threads and modify?

772

What is category and class extension? How these differ?

791

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Un-Answered Questions { Apple iOS }

what are all instruments available in Xcode?

977

What is ipad screen size?

854

Explain the difference between viewdidload and viewdidappear?

830

What is mvc in ios?

843

What is application lifecycle in ios?

900

What are moments and collections?

754

How can we prevent ios 8 app’s streaming video media from being captured by quicktime player on yosemite during screen recording?

753

What is 1x 2x and 3x in ios?

783

Who developed ios?

811

Explain about the applications that can be used with iphone ?

830

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

812

What is messaging? What is message forwarding?

805

How core data works to save data in persistent storage?

753

What is completion handler in ios?

836

What does ns stand for ios?

855

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