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’s the difference between an “app id” and a “bundle id” and what is each used for?

881

What is a category and when is it used?

897

What are “strong” and “weak” references? Why are they important and how can they be used to help control memory management and avoid memory leaks?

776

What are the limits of accessibility ?

853

Explain the characteristics of ios?

815

Explain place holder constraint

787

Explain differences between foundation and corefoundation

846

What is auto-layout?

915

What is the difference between let and var in swift?

917

What is the difference between atomic and non-atomic properties? Which is the default for synthesized properties? When would you use one over the other?

763

Explain the difference between copy and retain?

938

What is the difference between synchronous & asynchronous task ?

916

Why do you generally create a weak reference when using self in a block?

877

what’s accessibilityhint?

855

What is made up of nserror object?

853

Un-Answered Questions { Mobile OS }

What is api level, codename of android 2.3.3 – 2.3.7?

927

What is the file features used in android?

968

how to access the gps/camera/accelerometor on the simulator? : Blackberry tablet os

800

What is decision structure?

931

Why is it called ubuntu?

836

Why did we open the android source code? What is the guardian app for android?

916

What is mvc in swift?

786

Is apple better than android?

899

When was ios invented?

864

What is dynamic keyword in swift?

814

What are ios protocols?

783

What is drawable/ directory?

912

What is tdd (test-driven development)?

948

What is swift in ios?

765

What is the difference between mobile application testing and mobile testing?

988

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