46 practice sets · Page 3 of 3
Which of the following is NOT part of Android Jetpack?
WorkManager
RecyclerView
Navigation
Lifecycle
Correct Answer: B — RecyclerView
Explanation:
RecyclerView is a UI component for creating dynamic lists and grids but is not part of Android Jetpack, which includes components like Lifecycle, WorkManager, and Navigation to simplify app development.
How does Kotlin handle collections more effectively than Java?
By improving iteration speed
By supporting multi-threaded operations
By providing immutable and mutable types
By adding better sorting algorithms
Correct Answer: C — By providing immutable and mutable types
Explanation:
Kotlin distinguishes between mutable and immutable collections, making code more explicit and reducing errors related to unintended modifications.
What does the targetSdkVersion signify in an Android app?
The maximum API level the app can run on
The API level used for UI testing
The preferred API level for animations
The API level the app was tested against
Correct Answer: D — The API level the app was tested against
Explanation:
The targetSdkVersion indicates the API level an app is optimized for and tested against, ensuring compatibility with newer platform behaviors.
Which API is used for integrating Google Maps into an Android app?
Fused Location Provider API
Maps SDK for Android
Geofencing API
LocationManager API
Correct Answer: B — Maps SDK for Android
Explanation:
The Maps SDK for Android enables developers to embed Google Maps into their apps, allowing features like map navigation, markers, and custom overlays.
What is a Broadcast Receiver in Android?
A component to listen to system-wide broadcast messages
A service for playing media files
A framework for managing API requests
A component to display notifications
Correct Answer: A — A component to listen to system-wide broadcast messages
Explanation:
A Broadcast Receiver is an Android component that listens for system-wide broadcast messages, such as battery status changes or app updates.
Which layout is most commonly used to align views in a single row or column in Android?
RelativeLayout
LinearLayout
FrameLayout
ConstraintLayout
Correct Answer: B — LinearLayout
Explanation:
LinearLayout is a simple layout that arranges UI components either horizontally or vertically, depending on the specified orientation.
