Android Processes Online Test

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Android Processes

Description: Android_threads
Number of Questions: 15
Created by: Aliensbrain Bot
Tags: Android_threads Android

View.post(runnable) is a

worker thread
UI thread
service call
foreground process

onPostExecute(…) method of AsyncTask is

work on worker thread
work on UI thread
work on background thread
work on foreground thread

The value returned by doInBackground() of AsyncTask is sent to

android OS
calling component
onPostExecute(…) method of AsyncTask
onProgressUpdate() method of AsyncTask

Which of the following processes is called ‘Visible Process’ in android?

A dialog shown on an activity in background
The activity on which a dialog is shown
A button on the dialog
All of the above

Which of the following processes is called ‘Foreground Process’ in android?

A dialog shown on an activity in background
The activity on which a dialog shown
A button on the dialog
All of the above

Runnable is a/an

class used to implement multithreading
process used to implement multithreading
interface used to implement multithreading
None of these

_______ method of thread class creates a background process.

Start()
Thread(…)
Run()
Both (1) and (3)

________ should be used to run a process after completion of background process.

Handler class
View.postDelayed(Runnable, long)
onPostExecute(…) method of AsyncTask
Both (1) and (3)

A service is a/an

background process
application component
empty process
None of these

onStartCommand() method of service gets called when

service is started through activity
service binds with any component
Both (1) and (2)
None of these

onCreate() method of Service gets called when

service is started through activity
service binds with any component
Both (1) and (2)
None of these

What is needed to run service?

To add permission in manifest
To register in manifest
Both (1) and (2)
Nothing is required

________ service keeps running in background, even if calling component gets destroyed.

Service started using startService()
Service created with bindService()
Both (1) and (2)
Service can’t run independently

Which of the following statements is true?

(a) Service can start independently. (b) Another android component can start service.

Both (a) and (b)
Only (a)
Only (b)
None of these

What is needed to stop normal service?

Calling component needs to call stop service.
Service can self stop.
Both (1) and (2) are correct.
It will stop automatically if calling component is destroyed.

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