Android Studio - 49 - Android Jetpack Components MCQ

Android Studio – 49 – Android Jetpack Components

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1. What is Android Jetpack?

A framework for iOS app development

A collection of game development libraries

A set of tools for virtual reality development

A suite of libraries to simplify Android app development

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2. Which of the following is not a key principle of Android Jetpack?

Backward compatibility and testing

Improved virtual reality development

Modern Android development

Lifecycles and navigation

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3. What is the primary purpose of the “ViewModel” component in Android Jetpack?

To analyze app code

To store and manage UI-related data

To create virtual reality simulations

To improve app performance

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4. How does the “ViewModel” component retain data during configuration changes in Android?

It uses virtual reality simulations

It relies on the app's data storage

It stores data in a persistent database

It's scoped to the lifecycle of the UI component

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5. What is the “LiveData” component in Android Jetpack used for?

To improve app performance

To create virtual reality environments

To observe and react to changes in data

To analyze app code

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6. How does “LiveData” differ from regular observable data in Android?

LiveData requires explicit data updates

LiveData is only used for virtual reality development

LiveData cannot be used in Android apps

LiveData is lifecycle-aware and respects the lifecycle of the observer

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7. What is the purpose of the “Room” library in Android Jetpack?

To create virtual reality environments

To provide a persistence layer for app databases

To improve app performance

To analyze app code

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8. What does the “Room” library offer for database access in Android?

A SQLite database wrapper and SQL query support

Virtual reality databases

Performance monitoring tools

A programming language

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9. What is the “Navigation” component in Android Jetpack used for?

To improve app performance

To create virtual reality environments

To simplify navigation and UI structure in apps

To analyze app code

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10. What is the primary advantage of using the “Navigation” component?

It enhances virtual reality experiences

It speeds up app development

It simplifies the implementation of navigation patterns and UI navigation

It reduces app size and complexity

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11. What is the purpose of the “Paging” library in Android Jetpack?

To create virtual reality simulations

To analyze app code

To load large datasets efficiently in app lists

To improve app performance

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12. What is the key benefit of using the “Paging” library for data loading in Android apps?

It requires no configuration or setup

It enhances virtual reality experiences

It loads data incrementally, reducing memory usage

It supports only small datasets

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13. What is the “WorkManager” component in Android Jetpack used for?

To schedule and manage background tasks

To analyze app code

To create virtual reality environments

To improve app performance

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14. What type of tasks can you schedule with the “WorkManager” component?

Only app startup tasks

Only UI-related tasks

Only virtual reality tasks

One-time and periodic tasks, including virtual reality simulations

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15. What is the purpose of the “Data Binding” library in Android Jetpack?

To analyze app code

To create virtual reality simulations

To improve app performance

To bind UI components directly to app data

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16. What does the “Data Binding” library eliminate the need for in Android layouts?

Virtual reality development

Manually updating UI components with data binding

Writing UI code to update UI components

Creating virtual reality environments

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17. What is the “LiveData” component in Android Jetpack used for?

To observe and react to changes in data

To analyze app code

To improve app performance

To create virtual reality environments

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18. How does “LiveData” differ from regular observable data in Android?

LiveData is lifecycle-aware and respects the lifecycle of the observer

LiveData cannot be used in Android apps

LiveData requires explicit data updates

LiveData is only used for virtual reality development

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19. What is the “ViewBinding” component in Android Jetpack used for?

To analyze app code

To create virtual reality simulations

To generate a binding class for view elements

To improve app performance

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20. What is the key advantage of using “ViewBinding” in Android?

It requires manual binding of view elements

It eliminates the risk of null pointer exceptions

It speeds up app development

It enhances virtual reality experiences

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21. What is the “Hilt” library in Android Jetpack used for?

To provide dependency injection for Android apps

To create virtual reality environments

To improve app performance

To analyze app code

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22. How does “Hilt” simplify dependency injection in Android apps?

By automating the setup of dependencies

By analyzing app code

By enhancing virtual reality experiences

By reducing app size and complexity

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23. What is the “CameraX” library in Android Jetpack used for?

To simplify camera development in Android apps

To improve app performance

To create virtual reality environments

To analyze app code

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24. What is the primary advantage of using “CameraX” for camera development?

It eliminates the need for camera hardware

It provides a consistent API for various Android devices

It enhances virtual reality experiences

It requires deep customization for each device

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25. What is the purpose of the “Compose” library in Android Jetpack?

To create virtual reality environments

To improve app performance

To build UI components using a declarative syntax

To analyze app code

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26. How does “Compose” differ from traditional Android UI development?

It relies on a scripting language for UI components

It offers a more declarative and UI-focused approach

It requires extensive use of XML layouts

It enhances virtual reality experiences

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27. What is the “Benchmark” library in Android Jetpack used for?

To analyze app code

To measure app performance and optimize it

To improve app performance

To create virtual reality simulations

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28. What is the primary goal of using the “Benchmark” library in Android apps?

Generating code documentation for apps

Enhancing virtual reality experiences

Identifying performance bottlenecks and improving them

Reducing app size and complexity

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Android Studio – 49 – Android Jetpack Components MCQ