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 a static variable swift?

916

What is difference between if and guard in swift?

973

What is base class in swift?

836

What is swift nsarray?

815

What are lifecycle events of uiviewcontroller?

802

How we can wait for some thread to finish before starting another?

847

How to de-symbolicate crash log?

820

How we can do multithreading in ios?

913

Explain ~/documents, ~/library, ~/tmp. What directory is ~ on ios?

807

Arc is compile time or run time feature?

931

Is uikit thread safe?

867

Why do we override drawrect: method?

860

What does static analyser do?

877

What is nsuserdefaults? What type of data can we store there?

888

Explain the difference between viewdidload and viewdidappear?

906

Un-Answered Questions { Mobile OS }

What is the benefit of setting reuseidentifier to a non-nil value?

801

How to convert nsarray to nsmutablearray in swift?

1027

Can android lollipop be upgraded to marshmallow?

934

Is ubuntu an open source?

715

What type of literals does swift language have?

841

What is the main purpose of a fragment?

953

How would you update the ui of an activity from a background service?

1167

What is the ubuntu terminal?

832

What is the 'interface' and 'implementation'?

886

Types of notification in android?

1041

What is synchronous vs. Asynchronous in gcd ?

829

Who inventors of android ?

957

How method is implemented in android studio?

1011

What is ip spoofing and how can it be prevented?

1005

What are the activity lifecyle callbacks?

991

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