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 guard statement?

887

Who calls the main function of our app during the app launch cycle?

920

What is the benefit of using guard statement in swift?

887

Explain some biggest changes in usernotifications.

901

What is “defer”?

902

What are ui elements?

863

What is the difference between array and nsarray?

964

What are the most important features of swift?

892

What are the different ways to pass data in swift?

844

What is the use of double question mark “??” In swift?

929

Where can we test the apple iphone apps if we don’t have an ios device?

844

What is a guard statement? What is the benefit of using guard statement in swift?

847

Is swift an object-oriented programming language?

870

How can we make a property optional in swift?

930

Explain grand central dispatch (gdc).

860

Un-Answered Questions { Mobile OS }

What is the short cut to open the “Code Snippet Library” in Xcode?

976

What are the four asynctask methods that must be overridden?

972

Explain real time scenario where android can be used?

938

What are the activity lifecyle callbacks?

995

Explain the steps involved in submitting the App to App-Store in iOS operating system?

943

Explain the organizer advantages of blackberry technology?

872

Which is the latest android version 2019?

960

Can you please explain the difference between nsarray and nsmutablearray?

827

What is cocoa swift?

880

Explain ttl (time to live)?

1026

How do I update google play services on android?

935

What is cocoa and cocoa touch?

905

What is the difference between a fragment and an activity?

1017

What is queue in ios?

862

What do you mean by activitycreator?

1069

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