Ch23-Op Sys Types/Windows Versions

Question 1

what kind of work does the user need to perform?

Answer 1

dictates type of operating system (OS) and type of computer

Question 2

Linux

Answer 2

large market share (servers, penetration-testing laptops, other computer devices

free to download

licensed under General Public License (GPL)-derived works can only be distributed under the same license terms as the software itself

Question 3

distros(distributions)

Answer 3

a variant of Linux

i.e. Ubuntu, CentOS, Red Hat, Kali

Question 4

macOS versions

Answer 4

macOS 10.14 (Mojave)-latest version-early 2019

macOS 10.12 (Sierra)

Question 5

Workstation Operating Systems (OSes)

Answer 5

Microsoft Windows

Apple macOS

Linux

Question 6

macOS (previously OS X)

Answer 6

proprietary operating system (Macintosh desktop, MacBook Pro, Air laptop)

Question 7

OS X to macOS

Answer 7

OS X used through version 10.11 (El Capitan) then changed to macOS from version 10.12 (Sierra) onward

Question 8

x86

Answer 8

older CPU names ended in an 86

refer to 32-bit CPUs that enable 4GB of address space

Question 9

x86-64

Answer 9

type of CPU architechture

newer 64-bit CPUs (available for PCs since 2003)

wider data path (4 program execution)

can run 64-bit and 32-bit software (backward compatible)

can address default max of 256 TB of RAM

Question 10

C;\Windows\System32

Answer 10

where 64-bit files and apps are stored

also C;\Program Files

Question 11

C;\Windows\SysWOW64

Answer 11

where 32-bit system files and apps are stored

also C;\Program Files (x86)

Question 12

Mobile OSes-either open or closed source

Answer 12

iOS

Android

Chrome OS

Windows-uses Windows 10-Home edition (Microsoft previously installed Windows RT-stopped using 2015)

Question 13

open source software

Answer 13

free to download and modify

Question 14

closed source software (commercial/vendor specific)

Answer 14

cannot be modified without express permission

Question 15

Android (open source, Linux-based OS)

Answer 15

developed by Open Handset Alliance (dir by Google)

green robot caricature signifies Android/other related open source apps

versions-sweet names (Lollipop, Marshmallow, Nougat, Oreo, Pie/5-9) LMNOP-alphabet

Question 16

which version of Android is your device running?

Answer 16

Home screen>Settings>About

Question 17

AOSP

Answer 17

Android Open Source Project

commissioned by Google

mission-maintain & further develop Android

download Android application package (APK)

Question 18

APK (Android application package)

Answer 18

package file format

for distribution/installation of application software and middleware