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 3013

What's fast enumeration?

2 3149

What are the differences between categories and extensions?

1 2406

What is a singleton?

1 2665

Name and explain the iOS app states.

1 2481

What are the memory management rules?

1 2421

Name the memory management rules and their related methods.

1 2474

Explain why delegates and notifications are different.

1 2252

What is lazy loading?

1 2360

Explain shallow copying and depth copying.

1 2211

What is a struct?

1 2853

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

1 2939

What is posing in iOS?

B-Ways TecnoSoft,

1 3455

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

1 2173

Does iOs supports multitasking?

1 2340

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Un-Answered Questions { Apple iOS }

Explain the difference between stack and heap memory?

578

applications that can be used with iphone

598

What is meaning of 'copy' keyword?

632

What does @dynamic mean?

692

Explain the difference between cocoa and cocoa touch?

659

What is the protocol in ios?

592

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

610

What is delegation pattern in ios?

562

What manual memory management?

563

What is the difference between developer and enterprise developer accounts?

542

What persistent storage core data uses to save data?

583

What is nsuserdefaults? What type of data can we store there?

636

Is core data is thread safe?

624

What is the difference between viewdidload and viewdidappear?

592

What is the benefit of setting reuseidentifier to a non-nil value?

555

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