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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?

 491

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?

 414

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 }

Does ios support multitasking?

485

What is ios image?

411

How to generate a protected disk image containing your csr, private key and development certificate in iphone development?

460

Explain the difference between bounds and frame?

405

Explain concept of notification center, local and remote notifications.

354




Which app specific objects store the app's content in iOS operating system?

451

Explain differences between foundation and corefoundation

487

What is meaning of 'retain' keyword?

530

Who developed ios?

449

Define 'retain' keyword?

464

How do you decide when to use infinite scroll or pagination in ios? : IOS Architect

497

What is ios deadlock?

484

Can you please explain the difference between nsarray and nsmutablearray?

408

Explain the difference between inheritance and category?

433

What is the mean of not running state in ios?

437

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