Android Pre-test

What is the Android OS architectural component that provides the framework for building apps?

• Activities

• Services

• Broadcast Receivers

• Content Providers

Which of the following is NOT a part of the Android UI component hierarchy?

• View

• Widget

• Linear Layout

• Relative Layout

How do you create a new Android project in Android Studio?

• File > New Project

• File > Open Project

• Tools > Create New Project

• Settings > New Project

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

• To define the project's dependencies

• To declare the project's permissions

• To specify the project's hardware requirements

• To define the project's UI components

What is the difference between a fragment and an activity?

• A fragment is a self-contained piece of code that can be used in different activities, while an activity is a single instance of a fragment.

• A fragment is a part of an activity, while an activity is a separate entity.

• A fragment is used for background processing, while an activity is used for the UI.

• Fragments and activities are the same thing.

What is the advantage of using Fragments over Activities?

• Fragments are more flexible and reusable than activities.

• Fragments are easier to manage than activities.

• Fragments provide better performance than activities.

• Fragments have fewer limitations than activities.

What is the purpose of the Navigation Component in Android?

• To handle user input and events

• To manage the app's navigation between fragments and activities

• To handle data storage and retrieval

• To handle background processing and services

What is the difference between a custom view and a custom layout in Android?

• A custom view is a specialized view that can be used in different parts of an app, while a custom layout is a unique arrangement of views within a container.

• A custom view is a view that is created programmatically, while a custom layout is a layout that is defined in XML.

• A custom view is a view that is defined in XML, while a custom layout is a layout that is created programmatically.

• Custom views and custom layouts are the same thing.

What is the advantage of using Room Persistence Library over SQLite in Android?

• Room provides a simpler API and reduces boilerplate code.

• Room provides type safety and compile-time checks.

• Room is faster and more efficient than SQLite.

• Room has built-in support for real-time data synchronization.

What is the purpose of the WorkManager in Android?

• To schedule background jobs

• To handle asynchronous tasks

• To manage the app's workflow

• To optimize battery life