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?

843

What is a category and when is it used?

848

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?

726

What are the limits of accessibility ?

806

Explain the characteristics of ios?

765

Explain place holder constraint

738

Explain differences between foundation and corefoundation

781

What is auto-layout?

871

What is the difference between let and var in swift?

859

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?

732

Explain the difference between copy and retain?

883

What is the difference between synchronous & asynchronous task ?

854

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

835

what’s accessibilityhint?

800

What is made up of nserror object?

813

Un-Answered Questions { Mobile OS }

When is an app said to be in active state?

743

What is libdispatch?

833

Why ubuntu is not affected by virus?

661

What are the ios devices?

795

How do you stop apps running in the background on ios?

740

Explain the difference between 'protocol' and 'delegate'?

736

What is the bundle in android?

804

What are the features of swift programming?

838

What happens if iapplication object does not handle an event?

769

What language does Android support for application development?

892

Explain how you can migrate to Xcode?

963

How long does it take to install ubuntu from usb?

682

Will iphone 6s get ios 14?

712

Tell me what is iphone os?

753

How do I get rid of app errors on iphone?

720

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