Apple iOS Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Apple iOS Interview Questions

Questions Answers Views Company eMail

Explain your process for tracing and fixing a memory leak iOs?

SwanSoft Technologies,

864

What is code signing in iOS operating system?

CDC,

819

What are layer objects and what do they represent in iOS operating system?

CDC,

808

What is fast enumeration in iOS operating system?

B-Ways TecnoSoft,

866

What is the difference between delegates and notifications in iOS operating system?

B-Ways TecnoSoft,

840

What is dynamic typing in iOS operating system?

CDC,

832

Implement the following methods: retain, release, auto release in iOS operating system?

CDC,

804

What is dynamic in iOS operating system?

B-Ways TecnoSoft,

988

What is atomic and nonatomic in iOS operating system? What is run loop in iOS ?

CDC,

842

What is a struct in iOS operating system?

B-Ways TecnoSoft,

772

Explain the difference between NSOperationQueue concurrent and non-concurrent in iOS operating system?

B-Ways TecnoSoft,

855

Which class will be subclassed in iOS operating system?

B-Ways TecnoSoft,

805

What is view object in iOS operating system?

B-Ways TecnoSoft,

924

Explain the options and bars available in xcode 4.x workspace window in iOS operating system

CDC,

827

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

B-Ways TecnoSoft,

1015

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Un-Answered Questions { Apple iOS }

What is @dynamic and any place where it is used?

838

What are the ways to store data localy on iphone device?

738

What is mapping model?

799

What is mvp in ios?

807

What are the requirements for developing iphone apps?

800

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?

773

How core data works to save data in persistent storage?

761

What is array in ios?

780

What is strong in ios?

787

Explain the usage of struct?

807

When can you get ios 13?

809

What are most ios apps written in?

937

What is mvc pattern in ios?

860

How to start a thread?

771

What is nsobject in ios?

828

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