Mobile OS Interview Questions
Questions Answers Views Company eMail

 Which API is used to write test scripts that help in exercising the application's user interface elements?

1 1639

. Why an app on iOS device behaves differently when running in foreground than in background? 

1 1140

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

1 1183

 Which framework delivers event to custom object when app is in foreground? 

1 1147

. When an app is said to be in not running state? 

1 1403

. Name the app sate which it reaches briefly on its way to being suspended

1 868

 An app is loaded into memory but is not executing any code. In which state will be in?

1 744

 Assume that system is running low on memory. What can system do for suspended apps?

1 762

 How can you respond to state transitions on your app? 

1 971

. List down app's state transitions when it gets launched. 

1 812

What is the use of controller object UIApplication?

1 1580

How is the app delegate is declared by Xcode project templates?

1 1478

 Which app specific objects store the app's content?

1 1517

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

1 727

Which is the super class of all view controller objects?

1 2375

Un-Answered Questions { Mobile OS }

DB updation when app new version comes ?


What is the methods for unzip file in AFNetworking


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


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


Explain Apple push notification


How to do upload of large sized video file to server ? while uploading user presses “Homebutton” How long will execute?


Can Ubuntu be integrated with Microsoft infrastructure?


In mapKit frame work, how to get current user location


What is a ContentProvider and what is it typically used for?


what is preferences


What does Ubuntu mean?


Explain @synchronized ,@dynamic


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


Difference b/w collectionView & uitableview?


Explain your process for tracing and fixing a memory leak