Quiz | Croma Campus

How do you declare a service in AndroidManifest.xml?

<service>
<intent>
<activity>
<receiver>

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What is the use of the 'Adapter' class in Android?

To handle data binding for views
To manage UI components
To handle network operations
To manage app resources

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How can you optimize battery usage in an Android application?

Using background services
Using JobScheduler and WorkManager
Using IntentService
Using multiple activities

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Which method is used to start an activity for a result in Android?

startActivity()
startActivityForResult()
startResultActivity()
startForResultActivity()

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How can you access a view by its id in Android?

findViewById()
getViewById()
findView()
getView()

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Which company developed Android?

Apple
Google
Microsoft
IBM

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Which component is NOT part of the Android application structure?

Activities
Fragments
Intents
Servers

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What is the purpose of the 'Looper' class in Android?

To manage threads
To manage message queues for threads
To handle UI rendering
To manage network requests

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How do you handle long-running operations in Android without blocking the UI?

Using background threads
Using main thread
Using UI thread
Using main activity thread

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What is an Activity in Android?

A screen representation
A background service
A type of Broadcast Receiver
An XML layout file

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How can you avoid ANR in Android?

Using background threads
Using heavy tasks on main thread
Blocking UI thread
Ignoring system events

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Which class is used to play audio in Android?

MediaPlayer
AudioPlayer
SoundPlayer
MediaController

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Which layout is best for a complex UI with nested elements?

LinearLayout
RelativeLayout
ConstraintLayout
FrameLayout

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How can you handle different screen sizes in Android?

Use of flexible layouts
Fixed layouts
Using pixel-based dimensions
Ignoring the issue

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What does APK stand for?

Android Phone Kit
Android Page Kit
Android Package Kit
Android Package Keeper

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How can you perform network operations in Android?

Using AsyncTask
Using Handler
Using IntentService
All of the above

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How is a Toast message displayed in Android?

Toast.makeText()
Toast.show()
Toast.display()
Toast.create()

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What is the default value of a boolean variable in Java?

TRUE
FALSE
null
0

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Which keyword is used to define a constant in Java?

const
final
static
immutable

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What is the use of an Intent in Android?

To pass data between activities
To draw the UI
To handle background tasks
To manage the lifecycle

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What does the 'R' class in Android represent?

Resources
Remote Services
Resolved Classes
Recent Activities

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What is Android?

Operating System
Programming Language
Database
Web Server

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Which method is used to close an activity in Android?

finish()
stop()
close()
destroy()

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Which method is used to bind a service to a component in Android?

bindService()
startService()
bindComponent()
bindStart()

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What is the use of RecyclerView in Android?

To display a fixed number of items
To display a large dataset of items
To handle user input
To manage network operations

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What does the term "ViewModel" refer to in Android Architecture Components?

A UI layout
A component for managing UI-related data
A background process
A system service

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How do you define a layout in XML for an Android application?

<layout>
<view>
<design>
<xml>

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