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

Apple iOS Interview Questions

Questions Answers Views Company eMail

What is iOS?

2 3656

What's fast enumeration?

2 3832

What are the differences between categories and extensions?

1 2948

What is a singleton?

1 3399

Name and explain the iOS app states.

1 3076

What are the memory management rules?

1 2939

Name the memory management rules and their related methods.

1 2987

Explain why delegates and notifications are different.

1 2831

What is lazy loading?

1 2898

Explain shallow copying and depth copying.

1 2751

What is a struct?

1 3579

Is the object retained if I call performSelector:withObject:afterDelay:?

1 3497

What is posing in iOS?

B-Ways TecnoSoft,

1 3950

Where do you test the developed apps if you do not have the device?

1 2724

Does iOs supports multitasking?

1 2773

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Un-Answered Questions { Apple iOS }

What major changes released in ios7, ios8, ios9+?

809

What is view controller xcode?

855

Explain differences between foundation and corefoundation

835

Will iphone 6 get ios 13?

746

Differentiate between release and pool drain?

850

What are layer objects?

860

What are the skills required for ios developer?

782

Define content offset?

831

What are the delegate methods of mkmapview?

809

Name the application thread from where uikit classes should be used?

1002

What is the methods for unzip file in AFNetworking

1757

What is a model class?

793

What is a memory leak?

844

Explain the difference between stack and heap memory?

784

Explain the difference between NSOperationQueue concurrent and non-concurrent in iOS operating system?

852

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