Mobile OS Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Mobile OS Interview Questions

Questions Answers Views Company eMail

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

UGC Corporation,

835

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

UGC Corporation,

797

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

TryTechnicals Pvt Ltd,

922

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

TryTechnicals Pvt Ltd,

803

How can we achieve singleton pattern in iOS?

Winsol Solutions,

850

What is Delegation in iOS?

UGC Corporation,

807

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,

858

How to represent layer objects in iOS operating system ?

TryTechnicals Pvt Ltd,

810

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

TryTechnicals Pvt Ltd,

863

Is there any garbage collector concept available in iOS?

Winsol Solutions,

816

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

TryTechnicals Pvt Ltd,

814

What are layer objects in iOS operating system?

SwanSoft Technologies,

833

What is notification in iOS?

TryTechnicals Pvt Ltd,

871

Explain how an autorelease pool works at the runtime level in iOS

SwanSoft Technologies,

950

Un-Answered Questions { Mobile OS }

How to convert nsarray to nsmutablearray in swift?

981

How do I find a file in ubuntu?

810

What is category in ios?

775

Creating an android application using the eclipse plugin?

974

Why is android used?

878

What is the use of an activitycreator?

923

How do I change the user in ubuntu?

669

Which is the best version of ubuntu?

817

What is iphone architecture?

833

What is a widget on android?

961

How do I turn on auto sync on android?

921

Explain the instant messaging advantages of blackberry technology?

778

Is it safe to use ubuntu?

788

What is animationdrawable class?

1025

What is the architecture of android?

991

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