Kotlin Coroutines on Android

Software Development

An overview of using Kotlin coroutines to manage asynchronous tasks on Android, focusing on main-safety, structured concurrency, and ViewModel integration.

Android Kotlin Programming

10 Questions Medium Ages 18+ Apr 16, 2026

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About this Study Set

This study set covers Software Development through 10 practice questions. An overview of using Kotlin coroutines to manage asynchronous tasks on Android, focusing on main-safety, structured concurrency, and ViewModel integration. Every question includes the correct answer so you can learn as you go — pick any format above to get started.

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Browse all 10 questions from the Kotlin Coroutines on Android study set below. Each question shows the correct answer — select a study format above to practice interactively.

1 What is the primary purpose of using coroutines on Android?

A To increase memory usage
B To simplify asynchronous code
C To replace the main thread
D To disable network requests

2 Which Kotlin version introduced coroutines?

A 1.0
B 1.1
C 1.3
D 1.5

3 What is the main benefit of the 'lightweight' feature of coroutines?

A They run faster than threads
B They don't block the thread while suspended
C They consume more memory
D They require no CPU

4 What does 'structured concurrency' help prevent?

A Memory leaks
B UI freezes
C Syntax errors
D Network latency

5 Which component provides the 'viewModelScope' extension?

A Activity
B Fragment
C ViewModel
D Repository

6 What happens to coroutines launched in 'viewModelScope' when a ViewModel is destroyed?

A They continue running
B They are automatically canceled
C They crash the app
D They move to the background

7 What is the function of the 'suspend' keyword in Kotlin?

A To run code on the main thread
B To enforce that a function is called from a coroutine
C To block the current thread
D To delete a coroutine

8 Which dispatcher is recommended for I/O operations like network requests?

A Dispatchers.Main
B Dispatchers.Default
C Dispatchers.IO
D Dispatchers.Unconfined

9 What does the 'withContext' function achieve?

A It changes the thread of a coroutine
B It creates a new UI component
C It stops the app from responding
D It initializes the ViewModel

10 Why should you avoid network requests on the main thread?

A It makes the code shorter
B It leads to ANR (Application Not Responding) dialogs
C It saves battery life
D It is required by the OS

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