Android App Development Quiz

What is the primary role of an Activity in an Android app?

• Manages app data shared with other apps

• Enables long-running background tasks

• Represents what's on the screen and is the entry point for user interaction

• Delivers event messages from the operating system

Which of the following is NOT a core Android app component?

• Activity

• Service

• Broadcast Receiver

• Intent

What is an Intent used for?

• To manage app data securely

• To enable communication between Activities, Services, and Broadcast Receivers

• To define the layout of a screen

• To declare required hardware features

The AndroidManifest.xml file is used to do all of the following EXCEPT:

• Register app components with the operating system

• Define URL deep links

• Declare user permissions

• Set the app's dependencies and configuration for a module

Which directory is used to store all Java and Kotlin files in an Android project?

• res

• java

• drawable

• layout

Which layout group positions child views one after the other in a single direction (vertical or horizontal)?

• FrameLayout

• RelativeLayout

• LinearLayout

• ConstraintLayout

What unit of measurement should be used for text sizes to support users with poor vision by allowing the operating system to update the text size based on device scale settings?

• dp

• px

• sp

• pt

The Activity lifecycle method onCreate() is called when the activity is:

• About to be destroyed

• Visible and active on the screen

• Created but not yet active

• No longer visible

Which lifecycle method indicates that an Activity is visible and active in the app's foreground?

• onStart()

• onResume()

• onPause()

• onStop()

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

• To store all Java and Kotlin files

• To manage build configurations

• To contain all Android resource files like layouts, drawables, and values

• To declare user permissions