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 the difference between NSArray and NSMutableArray in iOS operating system?

CDC,

803

What is the purpose of UIWindow object in iOS operating system?

CDC,

829

What is Automatic Reference Counting (ARC) in iOS operating system?

B-Ways TecnoSoft,

829

Explain retain counts in iOS operating system?

CDC,

910

What are all the newly added frameworks iOS 4.3 to iOS 5.0?

CDC,

792

how you can delete a smart group created in Xcode?

900

what does @synthesize do?

854

what are the new features in Xcode 6?

950

what is the use of PO command in Xcode?

953

Explain how you can migrate to Xcode?

1012

what are the two different smart groups in Xcode?

919

What is the short cut to open the “Code Snippet Library” in Xcode?

919

Mention the short-cut to edit variables in Scope?

801

what are the source items used by Xcode?

1088

what is the difference between bounds and frame?

896

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Un-Answered Questions { Apple iOS }

What is the difference strong and weak reference?

763

What is nspersistentstore? Is it thread safe?

935

How core data works to save data in persistent storage?

753

Is xcode a framework?

882

What is @implementation?

829

What is @dynamic in objective-c ?

814

Can you pass same core data objects between different threads and modify?

772

What is category in ios?

769

Please explain what is difference strong and weak reference?

730

Which object manage the presentation of app's content on the screen?

844

What is cocoa touch framework in ios?

845

What is iphone sdk?

852

What is the difference between copies & retain in iOS operating system?

858

Explain how an autorelease pool works at the runtime level

2703

Why uicontrol is provided if we can create custom uiview?

818

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