Swift Exam Quiz for certificate

Swift skill quiz for certificate: Boost Resume and LinkedIn Profile

Enhance your career with our free Swift skill Quiz. Perfect for boosting your resume and LinkedIn profile, this comprehensive quiz covers essential Swift iOS app Development skills.

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Swift Skill Exam

1 / 20

1. What is the primary function of the `UICollectionView` class in UIKit?

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2 / 20

2. What is the purpose of the `@Environment` property wrapper in SwiftUI?

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3 / 20

3. Which of the following is NOT a valid way to unwrap an optional in Swift?

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4 / 20

4. What is the purpose of the `deinit` method in a Swift class?

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5 / 20

5. Which of these protocols is primarily responsible for providing data to a `UITableView` in UIKit?

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6. What is the difference between a `class` and an `actor` in Swift?

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7 / 20

7. Which method is called when a view is about to appear on the screen in a `UIViewController`'s lifecycle?

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8 / 20

8. What is the purpose of the `@StateObject` property wrapper in SwiftUI?

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9 / 20

9. In Swift, which keyword is used to define an enumeration?

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10 / 20

10. What is the purpose of the `@Environment` property wrapper in SwiftUI?

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11 / 20

11. What is the difference between `lazy var` and a computed property in Swift?

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12 / 20

12. What is the purpose of the `@UIApplicationDelegateAdaptor` property wrapper in SwiftUI?

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13 / 20

13. Which protocol is used to define the layout of cells in a `UICollectionView`?

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14. Which protocol is used to define the data source for a collection view (`UICollectionView`) in UIKit?

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15 / 20

15. What is the purpose of the `DispatchQueue.global()` method?

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16 / 20

16. What is the purpose of the `Codable` protocol in Swift?

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17. Which of the following is NOT a valid way to create a Combine publisher in Swift?

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18 / 20

18. What is the difference between `UserDefaults` and `Keychain` for data storage in iOS?

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19 / 20

19. Which of these is NOT a valid HTTP method used in RESTful APIs?

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20. What is the purpose of a "PreviewProvider" in SwiftUI?

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Brief About Swift

Swift is a robust and intuitive programming language created by Apple for building apps for iOS, Mac, Apple TV and Apple Watch. It’s designed to give developers more freedom than ever. Swift is easy to use and open source, so anyone with an idea can create something incredible.

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