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Apple iOS Interview Questions
Questions Answers Views Company eMail

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

SwanSoft Technologies,

476

What is code signing in iOS operating system?

CDC,

464

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

CDC,

429

What is fast enumeration in iOS operating system?

B-Ways TecnoSoft,

458

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

B-Ways TecnoSoft,

462

What is dynamic typing in iOS operating system?

CDC,

479

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

CDC,

452

What is dynamic in iOS operating system?

B-Ways TecnoSoft,

468

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

CDC,

479

What is a struct in iOS operating system?

B-Ways TecnoSoft,

414

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

B-Ways TecnoSoft,

475

Which class will be subclassed in iOS operating system?

B-Ways TecnoSoft,

459

What is view object in iOS operating system?

B-Ways TecnoSoft,

497

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

CDC,

456

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

B-Ways TecnoSoft,

509

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Un-Answered Questions { Apple iOS }

What is ios application?

483

What is @synthesize?

519

How to registering your device with the program portal for iphone development?

396

What is main thread checker?

474

What is bridging header in ios?

461




What are design patterns in ios?

486

Define autorealease pool?

482

What is latest xcode version?

442

What is inactive state in ios?

471

Explain difference between sax parser and dom parser?

416

When a nsfetchrequest fetches an entity object from store, does it fetch all of its data at once?

458

What is messaging? What is message forwarding?

439

What are delegates in ios swift?

434

What is block in ios objective c?

452

What is the difference between 'assign' and 'retain' keyword?

544

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