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?

943

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

775

What is core data?

837

How do you check if your code has memory leaks?

893

How to use core data objects between two threads?

872

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

927

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?

749

What is plist?

937

Are the nsmanagedobjectcontext queues serial or concurrent?

852

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

777

Explain parent-child context setup?

816

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

892

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

831

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

815

What is category and class extension? How these differ?

844

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Un-Answered Questions { Apple iOS }

What is a memory leak ios?

807

What is difference between 'protocol' and 'delegate'?

841

What is delegate in ios with example?

863

Define 'copy' keyword?

829

Explain the architecture of iphone? : IOS Architect

773

How can a user respond or react to the state transitions on the app?

955

Functionality of accelerometer of an iphone

845

What is ipad screen size?

888

How to download something from the internet?

863

What is difference between shallow copy and deep copy in ios ? : IOS Architect

909

What are the features of ios?

805

What is the difference between copy and retain?

818

Explain concept of notification center, local and remote notifications.

735

Find the letter count in UItextfield? Including first character?

1553

How to install an iphone application for testing?

918

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