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 3545

What's fast enumeration?

2 3711

What are the differences between categories and extensions?

1 2872

What is a singleton?

1 3291

Name and explain the iOS app states.

1 2993

What are the memory management rules?

1 2853

Name the memory management rules and their related methods.

1 2904

Explain why delegates and notifications are different.

1 2734

What is lazy loading?

1 2809

Explain shallow copying and depth copying.

1 2675

What is a struct?

1 3483

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

1 3410

What is posing in iOS?

B-Ways TecnoSoft,

1 3871

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

1 2616

Does iOs supports multitasking?

1 2678

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Un-Answered Questions { Apple iOS }

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

823

Why iphone apps are popular?

827

What is the difference between synchronous & asynchronous task in ios?

665

What is wildcard app ids?

863

What is a difference between stack and heap memory?

719

Explain interfaces?

823

What is difference between synchronous and asynchronous in web request in iOS operating system?

781

What is 1x 2x and 3x in ios?

732

What is @synthesize?

851

What is nslayoutanchor?

764

Mention the short-cut to edit variables in Scope?

764

What's the latest version of ios?

867

What are the ios devices?

789

What is view object in ios?

776

Explain the difference between cocoa and cocoa touch?

825

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