Apple iOS Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Apple iOS Interview Questions

Questions Answers Views Company eMail

How you will store user info (username, password or token) securely in ios?

802

What is wildcard app ids?

902

From which ios version, arc is supported?

830

What are advantages of arc over mrc?

837

Explain application sandboxing.

775

Have you uploaded app on appstore? What is the process?

715

What is difference between unit tests and ui test in xcode?

857

Why do we override drawrect: method? How to explicitly call it?

768

Explain difference between mrc and arc?

829

What are layers?

825

What is nsmanagedobjectcontext? What are the different concurrency types?

756

What is thread safe?

778

How many types of background modes supported in ios?

735

How we can execute some code when app is in background?

774

How you can add frameworks in xcode project?

806

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Un-Answered Questions { Apple iOS }

Define decoding or deserialization?

835

What are ios categories?

801

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

877

What is @implementation?

829

is code completion is active by default in iphone development?

798

What manual memory management ? How it work?

825

Explain how an autorelease pool works at the runtime level in iOS

950

How to registering your device with the program portal for iphone development?

793

Explain difference between sax parser and dom parser?

726

How core data differs from sqlite?

843

What is nsuserdefaults?

835

Will iphone 7 get ios 13?

748

What are kvo and kvc?

797

What is messaging? What is message forwarding?

805

What are various singleton instances provided by frameworks?

811

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