Lesson 2

Question 1

one of the primary roles of the Linux kernel in android is ___. it allows android to run on a wide variety of devices with different configurations.

Answer 1

hardware abstraction

Question 2

it controls how memory is allocated to processes and ensures that one process cannot interfere with the memory of another

Answer 2

memory management

Question 3

handles the creation, scheduling, and termination of process

Answer 3

process management

Question 4

software components that enable communication between the kernel and hardware devices

Answer 4

device drivers

Question 5

lightweight relational database management system that manages local databases for tasks such as storing user data, application, settings, and cached information

Answer 5

SQLite

Question 6

consists of platform libraries and services for handling multimedia content (audio, video, recording, streaming)

Answer 6

media framework

Question 7

c library developed for android. it provides a subset of the standard C library functions. used by both the android os and applications for low-level system operations and c-based code execution

Answer 7

bionic library

Question 8

compilation strategy where application bytecode is compiled into native code during installation, further enhancing app performance

Answer 8

ahead-of-time

Question 9

manages the lifecycle of applications and provides a framework for user interface management, such as handling the creation and navigation of app screens

Answer 9

activity manager

Question 10

manages and displays notifications to the user, providing a consistent way for apps to alert users about events or messages

Answer 10

notification manager

Question 11

written in java or kotlin, the official programming languages and are compiled to run directly on android devices (i.e. whatsapp)

Answer 11

native applications

Question 12

offer a wide range of content for leisure and enjoyment. they can include streaming movies, music, books, and podcasts (i.e. netflix)

Answer 12

entertainment applications

Question 13

enable users to connect rhough voice, video, and text-based messaging. include features like voice, video calls, group chats, and file sharing

Answer 13

communication applications

Question 14

help users manage tasks, organize their work, and improve efficiency (i.e., office suites, note-taking apps, calendar apps, ms office suite)

Answer 14

productivity applications

Question 15

facilitate communication and interaction among users. include features like user profiles, friend requests, sharing content, and messaging (i.e. whatsapp)

Answer 15

social media applications

Question 16

designed primarily for entertainment purposes. can range from simple, casual games to complex, graphics-intensive titles

(i.e. among us)

Answer 16

gaming applications

Question 17

web applications designed to provide a native app-like experience on the web. offer features like offline access, push notifications, and fast loading times. PWAS can be added to the home screen (i.e. pinterest)

Answer 17

progressive web applications

Question 18

developed using frameworks that enable code sharing across multiple platforms, such as android or ios. allows the creation of apps with a single codebase, reducing development time and costs (i.e. facebooks ads manager).

Answer 18

cross-platform applications

Question 19

combine elements of both native and web applications. developed using web technologies but are wrapped in a native container
(i.e. instagram)

Answer 19

hybrid applications

Question 20

essentially mobile websites that can be accessed through a browser, but can also be saved to home for quick access. rely on html, css, javascript, and require internet to function (i.e. twitter lite)

Answer 20

web applications

Question 21

world’s most popular mobile operating system

Answer 21

android

Question 22

this provides essential services such as hardware abstraction, memory management, and process management

Answer 22

Linux kernel

Question 23

core layer that interacts directly with the hardware and provides essential services and functionality

Answer 23

Linux kernel

Question 24

enforces security by implementing user and group permissions. ensures that processes and applications can only access resources for which they have permissions

Answer 24

security and permissions

Question 25

supports various file systems, including EXT4, FAT, NTFS. this support is crucial for managing storage devices and file access by applications

Answer 25

file system support

Question 26

for optimizing battery life on mobile devices. it controls cpu frequencies, screen brightness, device sleep states, and other power-related functions

Answer 26

power management

Question 27

pipes, sockets, and message queues to facilitate communication between processses

Answer 27

interprocess communication (IPC)

Question 28

Q
supports real-time features in embedded and specialized systems, where precise timing and predictability are essential

Answer 28

real-time features

Question 29

these provide core functionality to the android system and are accessible to both system-level processes and android applications

Answer 29

platform libraries

Question 30

subset of the OpenGL graphics rendering API. it allows android to leverage hardware acceleration for graphics rendering. this creates visually appealing and responsive user interfaces

Answer 30

OpenGL Embedded Systems

Question 31

open-source web rendering engine. it is used to render HTML content within applications, including web browsers, email clients, and web-based views

Answer 31

Webkit (Web Rendering Engine)

Question 32

responsible for managing the display subsystem in Android. create and manage graphical surfaces for rendering UI elements, animations, and video playback

Answer 32

surface manager

Question 33

these libraries provide secure communication over the internet by implementing encryption protocols such as secure socket layer and transport layer security

Answer 33

SSL/TLS libraries

Question 34

offer support for specific functions, such as image decoding, audio processing, and more

Answer 34

other native libraries

Question 35

these libraries contain the core Java and Kotlin libraries used by android applications. they provide essential functionality for applications such as data structures and utilities

Answer 35

core libraries

Question 36

layer that provides high-level abstractions and services for application development. offers a structured and consistent way for developers to interact with the Android system

Answer 36

Application Framework

Question 37

enables data sharing between applications and manages access to structured data, allowing apps to securely interact with each other’s data

Answer 37

content provider

Question 38

handles non-code resources like images, strings, and layout files, making it easier for developers to manage app resources

Answer 38

Resource Manager

Question 39

provides access to location-based services and GPS functionality for location-aware applications

Answer 39

location manager

Question 40

manages user interface components such as layouts, views, and widgets, enabling the creation of visually appealing and interactive user interfaces

Answer 40

view system

Question 41

manages the installation, update and removal of applications, ensuring a secure and organized app ecosystem

Answer 41

package manager

Question 42

provides access to telephony-related services for voice and data communication, facilitating mobile communication apps

Answer 42

telephony manager