Android architecture overview (Linux kernel, ART, framework) in Android Kotlin - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to declare the base layer of Android architecture.

Android Kotlin

val baseLayer = "[1]"

Drag options to blanks, or click blank then click option'

ALinux kernel

BAndroid Runtime

CApplication framework

DApplications

Attempts:

3 left

💡 Hint

Common Mistakes

Choosing Android Runtime instead of Linux kernel.

Confusing application framework with the base layer.

The base layer of Android architecture is the Linux kernel, which manages hardware and core system services.

2fill in blank

medium

Complete the code to name the Android component that runs app code.

Android Kotlin

val runtime = "[1]"

Drag options to blanks, or click blank then click option'

ALinux kernel

BAndroid Runtime (ART)

CApplication framework

DDalvik VM

Attempts:

3 left

💡 Hint

Common Mistakes

Choosing Linux kernel instead of ART.

Confusing ART with application framework.

Android Runtime (ART) is the component that executes app code, replacing the older Dalvik VM.

3fill in blank

hard

Fix the error in naming the Android layer that provides APIs for apps.

Android Kotlin

val frameworkLayer = "[1]"

Drag options to blanks, or click blank then click option'

ALinux kernel

BAndroid Runtime

CHardware Abstraction Layer

DApplication framework

Attempts:

3 left

💡 Hint

Common Mistakes

Confusing framework with runtime or kernel layers.

Choosing Hardware Abstraction Layer which is part of the kernel layer.

The Application framework layer provides APIs that apps use to interact with system services.

4fill in blank

hard

Fill both blanks to complete the Android architecture layers in order from bottom to top.

Android Kotlin

val layers = listOf("Linux kernel", "[1]", "[2]")

Drag options to blanks, or click blank then click option'

AApplication framework

BAndroid Runtime

CApplications

DHardware Abstraction Layer

Attempts:

3 left

💡 Hint

Common Mistakes

Mixing up the order of runtime and framework.

Including Hardware Abstraction Layer as a separate top layer.

The order from bottom to top is Linux kernel, Android Runtime, then Application framework.

5fill in blank

hard

Fill all three blanks to complete the main Android architecture layers from bottom to top.

Android Kotlin

val androidLayers = listOf("[1]", "[2]", "[3]")

Drag options to blanks, or click blank then click option'

ALinux kernel

BAndroid Runtime

CApplication framework

DApplications

Attempts:

3 left

💡 Hint

Common Mistakes

Putting Applications as a main architecture layer instead of a separate top layer.

Confusing the order of runtime and framework layers.

The main Android architecture layers from bottom to top are Linux kernel, Android Runtime, and Application framework. Applications run on top of these layers.