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Apple iOS Interview Questions
Questions Answers Views Company eMail

How you will store user info (username, password or token) securely in ios?

 436

What is wildcard app ids?

 493

From which ios version, arc is supported?

 429

What are advantages of arc over mrc?

 495

Explain application sandboxing.

 445

Have you uploaded app on appstore? What is the process?

 395

What is difference between unit tests and ui test in xcode?

 407

Why do we override drawrect: method? How to explicitly call it?

 397

Explain difference between mrc and arc?

 475

What are layers?

 473

What is nsmanagedobjectcontext? What are the different concurrency types?

 406

What is thread safe?

 449

How many types of background modes supported in ios?

 416

How we can execute some code when app is in background?

 417

How you can add frameworks in xcode project?

 398

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Un-Answered Questions { Apple iOS }

Is xcode a framework?

487

How respond to state transitions on your app in ios?

403

What are the three themes that ios embodies?

507

What is a difference between stack and heap memory?

393

What is @synthesize in objective-c ?

477




What is abstract class in ios?

445

What is libdispatch?

511

How to measure your application's performance on an iphone device?

425

What is datasource in ios swift?

438

Difference between release and autorelease ?

494

What is the viper?

480

What is category and class extension? How these differ?

419

What is cocoa touch?

436

How nsoperationque works?

457

What is strong and weak in ios?

425

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