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Apple iOS Interview Questions
Questions Answers Views Company eMail

What is iOS?  

2 1850

What's fast enumeration?

2 1821

What are the differences between categories and extensions?

1 1429

What is a singleton?

1 1334

Name and explain the iOS app states.

1 1464

What are the memory management rules?

1 1411

Name the memory management rules and their related methods.

1 1512

Explain why delegates and notifications are different.

1 1321

What is lazy loading?

1 1478

Explain shallow copying and depth copying.

1 1298

What is a struct?

1 1418

Is the object retained if I call performSelector:withObject:afterDelay:?

1 1871

What is posing in iOS?

B-Ways TecnoSoft,

1 2333

Where do you test the developed apps if you do not have the device?

1 1252

Does iOs supports multitasking?

1 1355


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Un-Answered Questions { Apple iOS }

Explain xib?

142


What is dependency management tools?

164


How to use core data objects between two threads?

149


What is difference between mvc and mvvm in ios?

158


What are the different types of ios application states?

161






What size is 1x and 2x?

132


What is arc in ios?

143


What is difference between performblock: and performblockandwait:?

178


What is view object in ios?

142


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

143


What is sandbox in iOS operating system?

168


Enlist the methods to achieve concurrency in ios?

146


What is nsmanagedobjectcontext? What are the different concurrency types? Explain each type.

142


Give example scenarios when an application goes into inactive state?

190


What happens if the methods doesn’t exist?

150