Kotlin Kotlin Coroutines 2

Question 1

What does calling `cancel()` on a Job do in Kotlin coroutines?

Accepted Answer

Cancels the coroutine and all its children

Answer

Pauses the coroutine

Answer

Restarts the coroutine

Answer

Throws a CancellationException immediately

Question 2

Which function suspends a coroutine for a given duration in Kotlin?

Accepted Answer

delay()

Answer

Thread.sleep()

Answer

wait()

Answer

pause()

Question 3

What is structured concurrency in Kotlin coroutines?

Accepted Answer

Ensuring child coroutines are scoped to a parent and cancelled together

Answer

Running coroutines in sequence only

Answer

Using only GlobalScope for all coroutines

Answer

Limiting the number of concurrent coroutines

Question 4

What is a Flow in Kotlin coroutines?

Accepted Answer

A cold asynchronous data stream that emits multiple values

Answer

A single suspending value

Answer

A thread pool manager

Answer

A coroutine dispatcher

Question 5

Which terminal operator collects all emitted values from a Flow?

Accepted Answer

collect()

Answer

emit()

Answer

produce()

Answer

receive()

Question 6

What happens when a coroutine throws an uncaught exception?

Accepted Answer

The exception propagates to the parent scope and cancels it

Answer

The exception is silently ignored

Answer

The coroutine pauses and waits

Answer

The JVM crashes immediately