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Mobile OS Interview Questions
Questions Answers Views Company eMail

What’s the difference between an “app id” and a “bundle id” and what is each used for?

 493

What is a category and when is it used?

 506

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?

 433

What are the limits of accessibility ?

 476

Explain the characteristics of ios?

 459

Explain place holder constraint

 436

Explain differences between foundation and corefoundation

 484

What is auto-layout?

 529

What is the difference between let and var in swift?

 488

What is the difference between atomic and non-atomic properties? Which is the default for synthesized properties? When would you use one over the other?

 423

Explain the difference between copy and retain?

 555

What is the difference between synchronous & asynchronous task ?

 445

Why do you generally create a weak reference when using self in a block?

 485

what’s accessibilityhint?

 477

What is made up of nserror object?

 463

Un-Answered Questions { Mobile OS }

Difference between coredata & sqlite?

499

Which is better redhat or ubuntu?

374

What is 'notification'?

469

What is ios technology?

454

What is difference between atomic and nonatomic in ios?

398




What is equals method?

500

what are the build phases available in Xcode?

482

What is the difference between atomic and non-atomic properties? Which is the default for synthesized properties? When would you use one over the other?

423

How does ubuntu work?

374

What is the use of igmp protocol?

523

What is difference between weak and strong in ios?

419

What is gradlew?

502

How do I update my os on my android?

512

What are app widgets?

510

what you know about blackberry tablet os? : Blackberry tablet os

451

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