Android Development Android Background Processing

Question 1

Which Jetpack library is the recommended solution for deferrable background work in Android?

Accepted Answer

WorkManager

Answer

AsyncTask

Answer

IntentService

Answer

JobScheduler

Question 2

What is a coroutine in Kotlin?

Accepted Answer

A lightweight concurrency primitive that can suspend and resume execution

Answer

A background thread

Answer

A type of Android Service

Answer

A database transaction

Question 3

Which coroutine dispatcher should be used for CPU-intensive tasks in Android?

Accepted Answer

Dispatchers.Default

Answer

Dispatchers.Main

Answer

Dispatchers.IO

Answer

Dispatchers.Unconfined

Question 4

Which WorkManager class represents a single unit of background work?

Accepted Answer

Worker

Answer

WorkRequest

Answer

WorkTask

Answer

BackgroundWorker

Question 5

What is the purpose of Dispatchers.IO in Kotlin coroutines?

Accepted Answer

For network and disk I/O operations

Answer

For UI updates

Answer

For CPU computations

Answer

For main thread callbacks

Question 6

What type of Android Service runs in a foreground process and shows a persistent notification?

Accepted Answer

Foreground Service

Answer

Background Service

Answer

Bound Service

Answer

Intent Service