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 category and class extension?

861

What are the different delete rules that a relationship can have?

742

what are fetched properties? How do you create a fetched property?

804

What is nspersistentstore? Is it thread safe?

937

What is a fault?

808

Is core data is thread safe?

826

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

757

What are the different delete rules that a relationship can have? Which one takes ownership?

795

What is the purpose of reuseidentifier?

844

What is dependency management tools?

791

Why do all model object attributes get marked with @dynamic and not synthesised?

891

In a single model, can I have few entities in one sqlite db file and remaining in another sqlite db file?

876

What is nsmanagedobjectcontext? What are the different concurrency types? Explain them.

757

What are transient properties?

833

Why do all model object attributes get marked with @dynamic and not synthesised? What does @dynamic mean?

754

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Un-Answered Questions { Apple iOS }

What is inactive state in ios?

862

What is application lifecycle in ios?

904

What are the different types of ios application states?

832

What is nsobject in ios?

828

When an app is said to be in active state?

819

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

847

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

756

What is the meaning of 'synthesize' keyword?

749

What is grand central dispatch ios?

863

What is ipad screen size?

854

What is @synthesize?

895

Explain "private", "protected" and "public"?

786

What persistent storage core data uses to save data?

795

What is categories in iOS?

859

what are fetched properties? How do you create a fetched property?

804

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