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

Apple iOS Interview Questions

Questions Answers Views Company eMail

Are document objects required for an application? What does they offer?

1 2102

Which is the super class of all view controller objects?

1 5226

What is the purpose of UIWindow object?

1 2496

. How do you change the content of your app in order to change the views displayed in the corresponding window?

1 2169

Define view object.

1 1962

You wish to define your custom view. Which class will be subclassed?

1 2332

. Apart from incorporating views and controls, what else an app can incorporate?

1 2476

What are layer objects and what do they represent?

1 2869

Explain what is the stack of autorelease pools. How autorelease pool work under the hood?

1367

How to debug a crash in the auto-release pool?

1 2348

How will you implement sets and the intersection operation? Complexity?

1298

what is your preferred programming language? Why? How long will it take you to learn a new programming language?

1244

What happens when you invoke a method on a nil pointer?

2437

Explain your process for tracing and fixing a memory leak

2401

Explain how an autorelease pool works at the runtime level

2674

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Un-Answered Questions { Apple iOS }

How to export your private key from your keychain in iphone development?

732

What is ios viewdidload?

763

How are non-atomic and atomic properties different?

834

What is cocoa and cocoa touch?

795

Do you know what are layer objects and what do they represent?

846

Explain the difference between frame and bounds?

893

How to set your application id after becoming a member of iphone developer program?

718

What are blocks in ios?

861

Explain the difference between copy and retain?

887

What is dynamic in iOS operating system?

936

Explain about AFNetworking. What is the base class used in AFNetworking library

2156

Flow of push notification?

787

What is the difference between strong and retain.

699

What is the maximum byte-size for a push notification to apple server?

780

What is meaning of 'copy' keyword?

791

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