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

Apple iOS Interview Questions

Questions Answers Views Company eMail

Which is the framework that is used to construct application’s user interface for ios?

768

What is the difference between atomic and nonatomic properties? Which is the default for synthesized properties?

773

When would you say that an app is not in a running state?

992

Which is the default for synthesized properties?

883

What is cocoa and cocoa touch?

835

When is an app said to be in active state?

777

Which are the app’s state transitions when it is launched?

782

Differentiate between ‘assign’ and ‘retain’ keyword.

883

What is swift and what is objective-c?

810

What is the difference between atomic and nonatomic properties?

871

What is cocoa touch?

778

What are layer objects?

863

Explain the different types of ios application states.

818

Explain me what is polymorphism?

844

Do you know any other changes to ios 7 since wwdc?

789

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Un-Answered Questions { Apple iOS }

What is inactive state in ios?

862

Explain steps for using coredata?

942

How to measure your application's performance on an iphone device?

788

What is cocoa framework in ios?

858

Explain the difference between copy and retain?

932

In which language ios is written?

816

How to use core data objects between two threads?

821

What are the cpu architectures supported by ios devices?

798

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?

711

What is the first responder and responder chain?

904

What is retain in ios?

777

Describe what “app thinning” means ?

827

What does static analyser do?

823

What is ios layer?

814

Who calls the main function of you app during the app launch cycle?

862

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