Apple iOS Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Apple iOS Interview Questions

Questions Answers Views Company eMail

What is advantage of categories? What is difference between implementing a category and inheritance?

503

What is an iphone app?

603

What are the requirements for developing iphone apps?

555

What is push notification?

657

Assume that your app is running in the foreground but is currently not receiving events. In which sate it would be in?

665

When to use nsmutablearray and when to use nsarray?

561

Describe the functionality of accelerometer of an iphone ?

620

What is cococa and cocoa touch?

681

What happens when we invoke a method on a nil pointer?

552

What is latest mac os version?

634

What is meaning of 'synthesize' keyword ?

637

What is meaning of 'retain' keyword?

651

What is the meaning of 'weak' keyword?

623

What are the viewcontroller lifecycle in ios?

653

What is difference strong and weak reference ? Explain.

608

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Un-Answered Questions { Apple iOS }

How core data differs from sqlite?

590

What is the difference between cocoa and cocoa touch?

523

What's new with the ios 7 camera?

592

Will iphone 6s get ios 14?

548

What is concurrency in ios?

570

What is fast enumeration in iOS operating system?

583

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

640

What are the important delegate methods of nsxml parser?

629

Explain the different types of ios application states.

573

What does ns stand for ios?

625

What is meant by delegate in ios?

570

How much do ios developers get paid?

618

What is retain counts?

532

How do I open a csv file on my phone?

564

what is Xcode?

629

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