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,

900

What is code signing in iOS operating system?

CDC,

855

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

CDC,

846

What is fast enumeration in iOS operating system?

B-Ways TecnoSoft,

926

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

B-Ways TecnoSoft,

885

What is dynamic typing in iOS operating system?

CDC,

888

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

CDC,

855

What is dynamic in iOS operating system?

B-Ways TecnoSoft,

1063

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

CDC,

888

What is a struct in iOS operating system?

B-Ways TecnoSoft,

825

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

B-Ways TecnoSoft,

894

Which class will be subclassed in iOS operating system?

B-Ways TecnoSoft,

856

What is view object in iOS operating system?

B-Ways TecnoSoft,

990

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

CDC,

867

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

B-Ways TecnoSoft,

1055

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Un-Answered Questions { Apple iOS }

What is shared instance in ios?

850

What is strong and weak in ios?

850

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

913

What is datasource in ios swift?

871

Do you know any other changes to ios 7 since wwdc?

842

What is strong weak in ios?

889

What is the maximum byte-size for a push notification to apple server?

862

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

951

What is core data stack?

848

Tell me what is fast enumeration?

860

How can a user respond or react to the state transitions on the app?

956

How do you stop apps running in the background on ios?

833

Does ios support multitasking?

891

In mapKit frame work, how to get current user location

1393

What manual memory management?

836

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