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 App Bundle in iOS operating system?

TryTechnicals Pvt Ltd,

906

What are all the difference between categories and subclasses in iOS operating system?

TryTechnicals Pvt Ltd,

763

What is an NSOperationQueue and how/would you use it in iOS operating system?

UGC Corporation,

833

What is plist file and explain about it is usage in iOS operating system?

UGC Corporation,

796

Multitasking support is available from which version in iOS operating system?

TryTechnicals Pvt Ltd,

921

Which app specific objects store the app's content in iOS operating system?

TryTechnicals Pvt Ltd,

802

How can we achieve singleton pattern in iOS?

Winsol Solutions,

848

What is Delegation in iOS?

UGC Corporation,

806

Why do we need to use @Synthesize in iOS operating system?

TryTechnicals Pvt Ltd,

782

Is the delegate for a CAAnimation retained in iOS operating system?

Winsol Solutions,

853

How to represent layer objects in iOS operating system ?

TryTechnicals Pvt Ltd,

806

What is the difference between copies & retain in iOS operating system?

TryTechnicals Pvt Ltd,

860

Is there any garbage collector concept available in iOS?

Winsol Solutions,

815

How can an operating system improve battery life while running an app in iOS operating system?

TryTechnicals Pvt Ltd,

812

What are layer objects in iOS operating system?

SwanSoft Technologies,

832

Post New Apple iOS Questions

Un-Answered Questions { Apple iOS }

How do I create a class in xcode?

880

What is tableview datasource?

784

How to fix tableviewcell dequeue issue ?

1427

Can a static library (.a) contain assets like pictures, sound documents and so on.?

799

What is meaning of 'synthesize' keyword ?

859

Explain how do I get a call when my ipad rings?

812

what are all instruments available in Xcode?

979

Is the delegate for a CAAnimation retained in iOS operating system?

853

How to generate a protected disk image containing your csr, private key and development certificate in iphone development?

803

What is the difference between copy and retain?

773

is code completion is active by default in iphone development?

801

Which api would you use to write test scripts to exercise the application’s ui elements?

762

When dealing with property declarations, what is the difference between atomic and non-atomic?

1496

What is viper code?

787

What is ios application life cycle?

799

For More Un-Answered { Apple iOS } Questions Click Here