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 a memory leak?

892

Why don’t we use strong for enum property in objective-c ?

1110

What is gcd? How is it used?

812

Why do we use synchronized ?

853

What widgets can not do ?

931

What is synchronous vs. Asynchronous in gcd ?

822

What is the ? In swift?

909

What is @synthesize in objective-c ?

869

What’s the difference between an “app id” and a “bundle id” and what is each used for?

941

What is a category and when is it used?

956

What are “strong” and “weak” references? Why are they important and how can they be used to help control memory management and avoid memory leaks?

814

What are the limits of accessibility ?

905

Explain the characteristics of ios?

871

Explain place holder constraint

833

Explain differences between foundation and corefoundation

878

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Un-Answered Questions { Apple iOS }

What is the full meaning of ios?

876

What is a fault?

848

Explain ios switching applications?

888

Is core data is thread safe?

862

How to install an iphone application for testing?

918

What is a serial queue?

835

What is messaging? How does the runtime handle message passing?

807

Mention the short-cut to edit variables in Scope?

844

What is delegate in ios objective c?

877

Define view object in iOS operating system?

835

Why do we need to use @Synthesize in iOS operating system?

829

how you can delete a smart group created in Xcode?

943

What is uiviewcontroller in ios?

819

From which ios version, arc is supported?

867

What is object graph in ios?

867

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