iOS Interview Questions

Last Updated: Nov 10, 2023

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iOS Interview Questions For Freshers

What is a delegate in iOS?

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What is the purpose of using protocols in iOS?

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What is a SwiftUI?

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What is GCD (Grand Central Dispatch)?

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What is the purpose of a storyboard in iOS?

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What are some common ways to persist data in iOS?

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What is Auto Layout and why is it used?

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What is the difference between synchronous and asynchronous task execution?

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What is the difference between weak and strong references?

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What is MVC in iOS?

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iOS Intermediate Interview Questions

Explain the concept of error handling in Swift.

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Explain the concept of ARC (Automatic Reference Counting).

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What is the difference between value types and reference types in Swift?

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What is Core Data in iOS?

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What is the purpose of a singleton design pattern?

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What are the different ways to pass data between view controllers?

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What is the purpose of a UINavigationController?

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Explain the concept of Key-Value Coding (KVC)

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How do you handle background tasks in iOS?

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What is the difference between a shallow copy and a deep copy?

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iOS Interview Questions For Experienced

What are some best practices for app localization in iOS?

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What is the purpose of a diffable data source in iOS?

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Explain the concept of closures in Swift.

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How do you perform network requests in iOS?

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What are some strategies for handling memory management in iOS?

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Explain the concept of concurrency in iOS.

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What is the purpose of a Coordinator pattern in iOS?

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Explain the concept of generics in Swift.

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What are some advanced techniques for optimizing app performance in iOS?

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How do you handle user input in SwiftUI?

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