Supreme Android Development Test - 66+ MCQs: Android Development Quiz: Test Your Knowledge with Android Questions and Answers

1. What is an Intent in Android?

A strong desire to do something

A message that represents an operation to be performed

An Android app

A type of Android device

2. What is the purpose of the 'onCreate' method in an Android 'Activity'?

To initialize the application context

To create a new 'Activity' instance

To perform one-time setup tasks when the 'Activity' is created

To handle user interactions

3. Which component is responsible for handling system-wide broadcast events in Android?

Activity

Service

Broadcast Receiver

Content Provider

4. Which component is responsible for background tasks in Android?

Activity

Service

Broadcast Receiver

Content Provider

5. What is the Android Intent system, and how is it used in app development?

The Android Intent system is a tool for measuring the performance of Android apps.

It is a messaging system that allows components to request functionality from other components, either within the same app or between different apps.

It is a database system for storing user preferences in Android apps.

It is a version control system for managing changes to app source code.

6. Which layout manager is typically used for creating a scrollable list of items in Android?

LinearLayout

RelativeLayout

RecyclerView

GridLayout

7. What is the purpose of the Android NDK (Native Development Kit), and in which scenarios is it typically used?

The Android NDK is used for creating user interfaces in Android apps.

It is used for developing Android apps that primarily rely on web technologies.

The Android NDK allows developers to write parts of their app in native code (e.g., C or C++) for performance-critical tasks.

It is a tool for debugging Android apps.

8. What is the purpose of the Android Gradle plugin in Android app development?

It is used to create user interfaces for Android apps.

It manages dependencies, compiles code, and packages the app for distribution.

It provides a way to test Android apps on iOS devices.

It is responsible for handling in-app purchases in Android apps.

9. What is the Android OS version codenamed 'Pie'?

Android 8.0

Android 9.0

Android 10.0

Android 11.0

10. Which layout is typically used for creating a user interface that adapts to different screen sizes and orientations?

LinearLayout

RelativeLayout

ConstraintLayout

GridLayout

11. What is an APK in Android development?

Advanced Programming Kernel

Android Program Kit

Application Package File

Android Project Key

12. Which component is used to store and retrieve data in Android, providing a structured way to interact with a database?

Service

Broadcast Receiver

Content Provider

Activity

13. What is the Android View system, and how does it relate to UI components in an Android app?

The Android View system is a tool for managing app permissions.

It is a system for displaying images and videos in Android apps.

The Android View system is the foundation for building the user interface of an Android app. It consists of View objects that represent UI components like buttons, text fields, and layouts.

It is a system for managing background tasks in Android apps.

14. What is the Android design pattern used for separating the presentation layer from the business logic?

Model-View-Controller (MVC)

Model-View-Presenter (MVP)

Model-View-ViewModel (MVVM)

Model-View-Adapter (MVA)

15. What is the primary programming language used for Android app development?

Java

C++

Python

Swift

16. What is the purpose of the SharedPreferences in Android?

To share app settings with other apps

To store data temporarily in RAM

To display pop-up messages

To play music

17. Which XML file is used to define the user interface layout of an Android Activity?

AndroidManifest.xml

Layout.xml

UI.xml

Activity.xml

18. What component of an Android app defines the user interface and screens?

Activity

Service

Broadcast Receiver

Content Provider

19. What is 'ProGuard' used for in Android app development?

Creating animations

Optimizing app performance

Creating app icons

Managing app permissions

20. Which programming language is commonly used for Android app development?

Java

Python

Ruby

21. What does XML stand for in the context of Android app development?

eXtensible Markup Language

Extensible Mobile Language

Executable Mobile Layout

Expressive Mobile Language

22. What is the Android API level used to target devices with Android 10?

API Level 28

API Level 29

API Level 30

API Level 31

23. What is an APK in the context of Android?

A file format for Android apps

A type of Android device

A programming language

An Android website

24. What is the main function of the RecyclerView in Android?

To display a map

To capture photos

To show a list of items with efficient scrolling

To play videos

25. What is an 'Intent' in Android?

A class for creating user interfaces

A message-passing mechanism between components

A database management system

A layout file for XML views

26. What is the primary function of the 'Logcat' tool in Android development?

Creating graphical user interfaces

Monitoring device hardware usage

Logging and debugging app output

Managing app resources

27. What is the AndroidManifest.xml file used for?

To store user data

To define the app's structure and behavior

To display advertisements

To create a backup of the app

28. What is the purpose of the 'strings.xml' file in Android development?

To store app icon images

To define app layouts

To store user interface text and string resources

To manage app permissions

29. Which Android component is responsible for managing the user interface and presenting information to the user?

Service

Activity

Receiver

Content Provider

30. What is ProGuard, and how does it enhance Android app security?

ProGuard is a tool for testing the performance of Android apps.

It is a security feature that encrypts user data in Android apps.

ProGuard is a code shrinker and obfuscator tool used in Android app development to reduce the size of the APK and make it more difficult for reverse engineering, thus enhancing app security.

It is a tool for automating app testing on various Android devices.

31. What is the Android Gradle Plugin used for in Android app development?

Managing device hardware

Building and managing app dependencies

Creating user interfaces

Debugging app code

32. What is the role of the Android Resource directory (res/) in an Android project, and what types of resources can be stored there?

The Android Resource directory is used for storing user data in Android apps.

It is a directory for storing audio files used in Android games.

The Android Resource directory (res/) is a location for storing various types of resources, including XML layouts, images, strings, and more. These resources are used to define the app's UI, behavior, and content.

It is a directory for storing app source code files.

33. Which Android component is responsible for the user interface of an app?

Activity

Service

Broadcast Receiver

Content Provider

34. Which XML attribute is used to specify the layout width and height of a view in Android?

android:layout_width

android:size

android:dimensions

android:layout_size

35. In Android, what is the 'adb' tool used for?

Android Debug Bridge

App Deployment Builder

Android Development Browser

Application Debugging Bundle

36. What is the purpose of the 'res' directory in an Android project?

To store app source code

To store app data files

To store app resources like images, layouts, and strings

To manage app permissions

37. What is Android?

A type of smartphone

An operating system

A programming language

A web browser

38. What is the Android 'Toast' used for?

To make toast for breakfast

To display short-lived messages to the user

To access the internet

To store app preferences

39. Which Android component is responsible for handling asynchronous tasks?

Activity

Service

Broadcast Receiver

AsyncTask

40. What is the primary purpose of an Android manifest file (AndroidManifest.xml)?

Storing app data

Managing user profiles

Defining app components and permissions

Creating user interfaces

41. Which Android component is responsible for handling background tasks independently of the UI?

Service

Activity

Broadcast Receiver

Content Provider

42. What is the Android 'Fragment' used for?

Managing app permissions

Creating background services

Creating reusable UI components within an 'Activity'

Managing app resources

43. What is the Android Jetpack library, and how does it simplify Android app development?

Android Jetpack is a tool for optimizing app performance on older Android devices.

It is a library for creating augmented reality (AR) apps on Android.

Android Jetpack is a set of libraries, tools, and architectural guidance that simplifies complex tasks in Android app development, such as navigation, data persistence, and UI components.

It is a tool for analyzing and improving battery usage in Android apps.

44. Which programming language is used for Android app layout design?

Java

Kotlin

C++

HTML

45. What is an APK in the context of Android app development?

Android Package Kit

Application Programming Kit

Android Program File

Application Package Key

46. What is the purpose of the Intent class in Android?

To represent an operation to be performed

To play music

To take photos

To send emails

47. What is the purpose of the IntentService in Android?

To start an Activity

To send notifications

To perform background tasks sequentially

To display ads

48. What is the purpose of the AndroidManifest.xml file in an Android app?

To declare app permissions and components

To store user preferences

To define app layouts

To manage app data

49. Which file contains the app's resources such as images and layouts in Android?

Java files

Gradle files

Manifest file

Res directory

50. What is the main function of the 'R.java' file in Android development?

To store resource references

To execute app code

To manage database operations

To handle network requests

Android Development MCQ Test 1