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?

833

What is a category and when is it used?

831

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?

709

What are the limits of accessibility ?

797

Explain the characteristics of ios?

755

Explain place holder constraint

719

Explain differences between foundation and corefoundation

774

What is auto-layout?

853

What is the difference between let and var in swift?

847

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?

718

Explain the difference between copy and retain?

870

What is the difference between synchronous & asynchronous task ?

836

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

820

what’s accessibilityhint?

790

What is made up of nserror object?

796

Un-Answered Questions { Mobile OS }

What is position?

900

What are the differences between a struct and a class?

841

Explain ttl (time to live) and why is it required?

903

How long is ubuntu 18.04 supported?

677

What is difference between serializable and parcelable ? Which is best approach in android ?

865

What is completion handler in ios?

773

What is fragment lifecycle?

871

how to install your app in android?

855

What is the procedure to check status of an activity in android?

882

What is android 6 called?

884

Explain the significance of autorelease?

799

How do I train as an Ubuntu system administrator?

1202

Explain the purpose of using a libaio package in Ubuntu?

728

Explain the features of blackberry?

893

What is oxygen os?

894

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