Android multiple choice Quiz Post category:ANDROID STUDIO QUIZE Reading time:1 mins read 0% Android Studio Skills Check 1 / 25 Which of the following classes is used to persist data across application restarts in Android? Intent SharedPreferences RecyclerView Service SharedPreferences is a class in Android used to persist simple key-value pairs of data across application restarts. It is commonly used for storing user preferences and settings. 2 / 25 Which of the following statements about ViewModel in Android is true? It survives configuration changes such as screen rotations. It is used for managing project dependencies. It handles UI rendering directly. It is a type of layout manager. A ViewModel is designed to store and manage UI-related data in a lifecycle-conscious way. It survives configuration changes such as screen rotations, ensuring that data is not lost during these changes. 3 / 25 What is the purpose of the RecyclerView in Android? To recycle system resources To handle background tasks To efficiently display large sets of data in a scrollable list To manage project dependencies RecyclerView is a flexible view used for displaying large sets of data in a scrollable list. It is more efficient than ListView because it reuses item views, reducing the need for new views to be created. 4 / 25 Which of the following is NOT a component of Android Studio? Layout Editor Code Editor Debugger Emulator While Android Studio includes an emulator for testing apps on virtual devices, it’s not considered a core component of the IDE itself. It’s a separate tool that comes bundled with Android Studio for testing apps. 5 / 25 What is the primary function of the “Build Variants” tool in Android Studio? Configuring different build types and product flavors Analyzing code performance Managing project dependencies Generating code documentation The Build Variants tool in Android Studio allows developers to configure different build types (e.g., debug, release) and product flavors (e.g., free version, paid version) for their app, enabling them to build multiple versions of the app from a single codebase. 6 / 25 What is the main function of the “Gradle” tool in Android Studio? Designing user interfaces Writing code Managing project dependencies and building projects Debugging apps Gradle is a build automation tool that manages project dependencies and builds projects in Android Studio. It’s essential for compiling code, managing dependencies, and generating APKs. 7 / 25 Which method is used to start a new activity and receive a result back in Android? startNewActivity() startActivity() startService() startActivityForResult() The startActivityForResult() method is used to start a new activity and receive a result back. The result is returned in the onActivityResult() callback method. 8 / 25 What is the purpose of the “Logcat” tool in Android Studio? Managing project files Optimizing app performance Generating code documentation Creating log files for debugging Logcat is a tool in Android Studio that displays system and app log messages. It’s primarily used for debugging purposes, allowing developers to monitor system and app messages during app development and testing. 9 / 25 What does the “res” directory in an Android Studio project contain? Configuration files Build scripts Source code files Resource files such as layouts, strings, and images 10 / 25 Which annotation in Android is used to denote that a method overrides a method in a superclass? @Override @Inherited @Overriden @Super The @Override annotation indicates that a method is intended to override a method in a superclass. It helps to catch errors if the method does not correctly override a method from the superclass. 11 / 25 Which tool in Android Studio is primarily used for analyzing app performance, including CPU, memory, and network usage? Layout Inspector APK Analyzer Profiler Logcat The Profiler tool in Android Studio allows developers to analyze various aspects of app performance, including CPU usage, memory allocation, and network activity. It helps in identifying performance bottlenecks and optimizing app performance. 12 / 25 Which method is used to display a toast message in Android? Toast.makeText() Toast.create() Toast.display() Toast.show() The Toast.makeText() method is used to create a Toast message. It requires the application context, the message, and the duration as parameters. To display the toast, you call the show() method on the resulting Toast object. 13 / 25 What is the purpose of the “AVD Manager” in Android Studio? Analyzing app performance metrics Creating and managing Android Virtual Devices (AVDs) Generating code documentation Managing version control for projects The AVD Manager in Android Studio is used to create and manage virtual devices on which Android apps can be tested. It allows developers to emulate various device configurations for testing purposes. 14 / 25 What is Android Studio primarily used for? Game development Web development Desktop application development Android app development 15 / 25 Which programming language is predominantly used in Android Studio for app development? Python Java Ruby C++ While Kotlin is increasingly popular, Java has been the traditional language for Android app development. Android Studio fully supports both Java and Kotlin. 16 / 25 What is the main advantage of using Kotlin over Java for Android development in Android Studio? Kotlin has better performance Kotlin is the only supported language Kotlin reduces boilerplate code and is more concise Kotlin is easier to learn 17 / 25 What is the purpose of the “Version Control” integration in Android Studio? Managing project dependencies Tracking changes to project files and collaborating with other developers Generating code documentation 18 / 25 Which of the following tools in Android Studio is used for inspecting and analyzing the layout hierarchy of an app’s UI? Logcat Profiler Layout Inspector APK Analyzer The Layout Inspector tool in Android Studio allows developers to inspect and analyze the layout hierarchy of an app’s UI. It provides insights into how UI elements are arranged and rendered on the screen. 19 / 25 Which method is used to handle a click event on a Button in Android? onTouch() onPress() onClick() 20 / 25 What is the purpose of the “ConstraintLayout” in Android Studio? To perform unit tests To debug network calls To manage project dependencies To simplify complex UI layouts with a flat view hierarchy ConstraintLayout is a flexible layout manager in Android Studio that allows developers to create complex layouts while maintaining a flat view hierarchy. It helps in reducing the nesting of views and improves layout performance. 21 / 25 Which file is commonly used for storing UI layouts in Android Studio projects? .xml files .gradle files .java files XML files are commonly used in Android Studio projects for defining UI layouts using the XML markup language. These files are located in the “res/layout” directory of the project. 22 / 25 Which component in Android Studio allows you to manage SDK packages? SDK Manager AVD Manager The SDK Manager in Android Studio allows developers to manage SDK packages, including installing, updating, and deleting SDK components such as platforms, tools, and system images. 23 / 25 What is an “Intent” in Android development? A message object used to request an action from another app component A way to manage app permissions A tool for debugging apps A type of layout manager An Intent is a messaging object used to request an action from another app component, such as starting an activity or service, or delivering a broadcast. 24 / 25 Which method is used to start an activity in Android Studio? startIntent() startService() startBroadcast() startActivity() The startActivity() method is used to start a new activity in an Android app. It takes an Intent as a parameter, which specifies the activity to be launched. 25 / 25 Which file in an Android Studio project contains the list of permissions the app requires? MainActivity.java res/strings.xml AndroidManifest.xml build.gradle Your score isThe average score is 56% LinkedIn Facebook Twitter 0% Restart quiz Rate Your Experience Thank you for taking the time to review our quiz! 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