Android Interview Question and Answers
Android Interview Question and Answers: Android is a mobile operating system developed by Google. It is designed primarily for touchscreen mobile devices such as smartphones and tablets. Android is based on a modified version of the Linux kernel and other open-source software, which makes it highly customizable and adaptable to different devices and platforms.
Android Interview Question and Answers: The Android operating system offers a wide range of features and functionalities, including support for multi-tasking, voice commands, and access to millions of applications through the Google Play Store. Android has become one of the most popular operating systems in the world, powering billions of devices globally, and it continues to evolve and improve with each new release, Here we are Providing Important Android Interview Question and Answers.
Question 1: What is Android?
Answer: Android is a mobile operating system developed by Google. It is based on the Linux kernel and other open-source software and is designed primarily for touch screen mobile devices such as smart phones and tablets.
Question 2: What are the components of Android architecture?
Answer: Android architecture consists of four main components: Linux Kernel, Libraries, Android Framework, and Applications.
Question 3: What is an APK in Android?
Answer: APK (Android Package Kit) is the file format used for installing Android applications on a device. It contains all the necessary files and resources needed to run the application.
Question 4: What is an activity in Android?
Answer: An activity is a component of the Android application that provides a user interface. It represents a single screen with a user interface that the user can interact with.
Question 5: What is the difference between a service and an activity in Android?
Answer: An activity provides a user interface, while a service performs a task in the background without providing a user interface. An activity is used to interact with the user, while a service is used to perform long-running operations, such as playing music or downloading files.
Question 6: What is the Android Manifest file?
Answer: The Android Manifest file is an XML file that contains important information about the Android application, such as permissions required by the app, activities, services, and broadcast receivers.
Question 7: What is ADB in Android?
Answer: ADB (Android Debug Bridge) is a command-line tool used to communicate with an Android device from a computer. It allows developers to install, debug, and test applications on Android devices.
Question 8: What is the difference between a fragment and an activity in Android?
Answer: An activity represents a single screen with a user interface, while a fragment represents a part of a screen with a user interface. Fragments can be combined in various ways to create multi-pane user interfaces on larger screens.
Question 9: What is an intent in Android?
Answer: an Intent is a messaging object used to request an action from another component of the Android system, such as starting an activity, launching a service, or broadcasting a message.
Question 10: What is Android Studio?
Answer: Android Studio is the official integrated development environment (IDE) for Android application development. It provides a complete set of tools for designing, developing, testing, and debugging Android applications.
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