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Apple iOS Interview Questions
Questions Answers Views Company eMail

 Are document objects required for an application? What does they offer?

 1 1548

Which is the super class of all view controller objects?

 1 4615

 What is the purpose of UIWindow object?

 1 1984

. How do you change the content of your app in order to change the views displayed in the corresponding window?

 1 1681

 Define view object.

 1 1491

You wish to define your custom view. Which class will be subclassed?

 1 1812

. Apart from incorporating views and controls, what else an app can incorporate?

 1 1947

What are layer objects and what do they represent?

 1 2336

Explain what is the stack of autorelease pools. How autorelease pool work under the hood?

 1059

How to debug a crash in the auto-release pool?

 1 1694

How will you implement sets and the intersection operation? Complexity?

 943

what is your preferred programming language? Why? How long will it take you to learn a new programming language?

 949

What happens when you invoke a method on a nil pointer?

 2047

Explain your process for tracing and fixing a memory leak

 2040

Explain how an autorelease pool works at the runtime level

 2269

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Un-Answered Questions { Apple iOS }

Explain differentiate between release and pool drain?

428

Define encoding or serialization??

433

Explain stack and heap?

500

What is nsoperationqueue?

438

What is the purpose of UIWindow object in iOS operating system?

440




Define iterator protocol?

454

Explain how the push notification works in iOS operating system?

454

What is oops in ios?

442

What is error in application in iphone?

422

Which devices will this work with ios?

411

Can you explain ios design patterns?

420

What is the mean of not running state in ios?

427

Does ios support multiple inheritance?

448

Assume that your app is running in the foreground but is currently not receiving events. In which sate it would be in?

515

What is difference between nsnotification and delegate?

419

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