iOS Development Interview Questions For Freshers

What are protocols in Swift and how are they used?

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How do you programmatically create a user interface in iOS?

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What is the AppDelegate in iOS?

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Explain the concept of delegation in iOS.

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What are view controllers and how are they used in iOS development?

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How do you manage memory in iOS apps?

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What is the purpose of Auto Layout in iOS and how does it work?

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What is the difference between retain and strong in iOS memory management?

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What is Core Data and how is it used in iOS?

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How do you handle asynchronous tasks in iOS?

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Explain the MVC (Model-View-Controller) design pattern in iOS.

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What is the difference between a class and a struct in Swift?

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What is the difference between weak and unowned references in Swift?

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What is a closure in Swift and how is it used?

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What is the guard statement in Swift and how is it used?

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Explain optionals in Swift and how they are used to handle nil values.

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What is the difference between a navigation controller and a tab bar controller?

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What are generics in Swift and how are they used?

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Explain the difference between synchronous and asynchronous tasks in iOS.

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What is the purpose of the main thread in iOS apps?

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iOS Development Intermediate Interview Questions

How do you implement data persistence in iOS apps?

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Explain the concept of MVC-N (Model-View-Controller-Networking) architecture in iOS.

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What is the purpose of the UIApplicationDelegate in iOS apps?

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How do you customize the appearance of UI elements in iOS?

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Explain the concept of Reactive Programming and how it can be applied in iOS development.

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What are the different methods for handling user authentication in iOS apps?

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What is Core Graphics and how is it used in iOS?

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How do you handle background tasks and multitasking in iOS apps?

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Explain the concept of view reusing in iOS and how it can improve performance.

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What is the purpose of the asset catalog in iOS?

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How do you localize your iOS app to support multiple languages?

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Explain the concept of Interface Builder in iOS.

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What are the different types of file storage options available in iOS apps?

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What is the purpose of the @escaping attribute in Swift closures?

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How do you pass data between view controllers in iOS?

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What is Core Animation and how is it used in iOS?

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Explain the concept of URLSession and how it is used for network requests in iOS.

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What is GCD (Grand Central Dispatch) and how is it used in iOS for concurrency?

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How do you handle user input and gestures in iOS apps?

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Explain the concept of dependency injection in iOS.

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What are the different types of app extensions in iOS and how are they used?

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What is the purpose of type erasure in Swift?

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How do you perform unit testing in iOS apps?

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Explain the concept of code signing in iOS.

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What are key-value observing (KVO) and key-value coding (KVC) in iOS?

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iOS Development Interview Questions For Experienced

How do you implement in-app purchases in iOS apps?

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What is Core Location and how is it used in iOS for location tracking?

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Explain the concept of Push Notifications in iOS and how they are implemented.

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What is Core Bluetooth and how is it used in iOS for Bluetooth communication?

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Explain the concept of Core ML (Machine Learning) in iOS and how it can be used for AI tasks.

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What are the different types of background execution modes in iOS apps?

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How do you implement augmented reality (AR) features in iOS apps?

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Explain the concept of Core Animation and how it can be used for advanced UI effects.

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What is Core Data Migration in iOS and how is it used to update your app's data model?

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How do you implement biometric authentication (Touch ID/Face ID) in iOS apps?

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Explain the concept of Core NFC and how it can be used for Near Field Communication tasks in iOS.

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What is Core Motion and how is it used in iOS for motion sensing?

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How do you implement background fetch and silent push notifications in iOS apps?

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Explain the concept of Core Spotlight and how it can be used for content indexing in iOS.

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What are the different methods for integrating social media sharing in iOS apps?

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How do you implement Apple Pay in iOS apps?

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Explain the concept of Core Audio and how it can be used for advanced audio processing.

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What is Core Haptics and how is it used in iOS for generating tactile feedback?

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