Kotlin Kotlin Coroutines

Question 1

What keyword is used to define a suspending function in Kotlin?

Accepted Answer

suspend

Answer

async

Answer

coroutine

Answer

await

Question 2

Which coroutine builder launches a new coroutine and returns a Job?

Accepted Answer

launch

Answer

async

Answer

runBlocking

Answer

withContext

Question 3

What does the `async` coroutine builder return?

Accepted Answer

Deferred

Answer

Job

Answer

CompletableFuture

Answer

Flow

Question 4

Which coroutine scope is used to run coroutines that block the current thread?

Accepted Answer

runBlocking

Answer

GlobalScope

Answer

CoroutineScope

Answer

MainScope

Question 5

What is the purpose of `withContext` in Kotlin coroutines?

Accepted Answer

To switch the coroutine dispatcher without creating a new coroutine

Answer

To launch a new coroutine

Answer

To cancel a coroutine

Answer

To collect a Flow

Question 6

Which dispatcher should be used for CPU-intensive operations in Kotlin coroutines?

Accepted Answer

Dispatchers.Default

Answer

Dispatchers.Main

Answer

Dispatchers.IO

Answer

Dispatchers.Unconfined