AAD AAD Android Architecture & App Components

Question 1

Which Android component serves as the primary entry point for user interaction and displays a single screen with a user interface?

Accepted Answer

Activity

Answer

An Activity represents a single screen with a UI and is the primary entry point for user interaction in an Android app.

Question 2

Which Android component is designed to perform long-running background operations without a user interface?

Accepted Answer

Service

Answer

A Service runs in the background to perform long-running operations without providing a user interface.

Question 3

In the Activity lifecycle, which method is called when the Activity is first created?

Accepted Answer

onCreate()

Answer

onCreate() is the first lifecycle callback called when an Activity is created, where you initialize the UI and data.

Question 4

What is the primary purpose of an Intent in Android?

Accepted Answer

To facilitate communication between components

Answer

An Intent is a messaging object used to request an action from another component, facilitating communication between Activities, Services, and BroadcastReceivers.

Question 5

Which Activity lifecycle method is called when the Activity becomes visible to the user but may not yet be in the foreground?

Accepted Answer

onStart()

Answer

onStart() is called when the Activity becomes visible to the user, before it enters the foreground interactive state.

(AAD) Associate Android Developer Certification Practice Test

(AAD) Associate Android Developer Certification Practice Test

AAD AAD Android Architecture & App Components