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?

814

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

692

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

747

What is nspersistentstore? Is it thread safe?

893

What is a fault?

758

Is core data is thread safe?

777

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

707

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

748

What is the purpose of reuseidentifier?

790

What is dependency management tools?

738

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

842

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

840

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

687

What are transient properties?

785

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

703

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Un-Answered Questions { Apple iOS }

What is auto-layout?

854

What is fast enumeration in iOS operating system?

801

What is the meaning of 'weak' keyword?

778

Explain ios switching applications?

783

What is mvc in ios?

792

What is made up of nserror object?

797

What is the significance of autorelease?

753

How are non-atomic and atomic properties different? Which one is the default property for synthesized properties? When would a user operate one over the other?

764

What’s the difference between not-running, inactive, active, background and suspended execution states?

739

Explain how an autorelease pool works at the runtime level in iOS

895

What is the purpose of using ibaction and iboutlet?

731

What language is ios written?

707

What is background state in ios?

830

Explain how to silent the noisy keyboard?

815

What is background mode in ios?

786

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