FL 1: Linux Operating System

Question 1

A Unix-like, open source and community developed operating system (OS) for computers, servers, mainframes, mobile devices and embedded devices

Answer 1

Linux

Question 2

Creator of Linux

Answer 2

Linus Torvalds

Question 3

Year when Linux is created

Answer 3

1991

Question 4

Linus Torvalds was a student at?

Answer 4

University of Helsinki in Finland

Question 5

He developed Linux as a _______

Answer 5

Unix-like operating system kernel

Question 6

He developed Linux for?

Answer 6

his personal use

Question 7

Under what license did Linus Torvalds released Linux?

Answer 7

GNU General Public License (GPL)

Question 8

Components of Linux System (inner circle to outer circle - 4)

Answer 8

Hardware
Kernel
Shell
Applications, Utilities

Question 9

refers to the software programs that users interact with to perform various tasks

Answer 9

Applications

Question 10

is a command-line interface (CLI) that allows users to interact with the Linux system by typing commands.

It interprets commands entered by the user and executes them by invoking the corresponding system programs or built-in shell commands.

Answer 10

shell

Question 11

core component of the Linux operating system.

it manages system resources such as CPU, memory, devices and file systems, and provides an abstraction layer between hardware and software

Answer 11

kernel

Question 12

refers to physical components of a computer system, including the cpu, memory (ram), storage devices (hard drives, SSDs), i/o devices (keyboard, mouse monitor, printer), and peripherals (network adapters, usb devices)

Answer 12

hardware

Question 13

are software tools and programs that perform specific tasks to manage the system, manipulate data, or facilitate user interactions.

Can be command-line tools or graphic applications

Answer 13

utilities

Question 14

for web servers, database servers, file servers, email servers, and any other type of shared server

Answer 14

Server OS

Question 15

for personal productivity computing.

Answer 15

Desktop OS

Question 16

for systems that do not require a graphical user interface or directly connected terminal and keyboard

Answer 16

Headless server OS

Question 17

for systems that require limited computing function

Answer 17

Embedded device or Appliance OS

Question 18

for routers, switches, domain name system servers, home networking devices and more

Answer 18

Network OS

Question 19

for enterprise software development.

Answer 19

Software Development OS

Question 20

for cloud instances.

Answer 20

Clous OS

Question 21

Linux is used in following ways:

Answer 21

1. Server OS
2. Desktop OS
3. Headless Server OS
4. Appliance OS or Embedded device
5. Network OS
6. Software Development OS
7. Cloud OS

Question 22

Two primary modes of operation:

Answer 22

Kernel Mode
User mode

Question 23

also known as supervisor mode or privileged mode.

Answer 23

Kernel mode

Question 24

it executes critical system tasks and manages processes, memory, and hardware devices.

Answer 24

kernel mode

Question 25

provides full control over the system and its resources, but also requires careful management to prevent unauthorized access or malicious actions that could compromise system stability and security

Answer 25

kernel mode

Question 26

is a low privilege level and is where most user-level applications and processes run

Answer 26

user mode

Question 27

applications and user level processes run in this mode, where they have limited access to system resources and must interact with the kernel through system calls

Answer 27

user mode

Question 28

provides level of isolation and protection to prevent applications from interfering with each other or causing system instability

Answer 28

user mode

Question 29

Linux Distributions:

Answer 29

1. Ubuntu 2. Debian 3. Fedora 4. CentOS 5. Arch Linux 6. openSUSE

Question 30

known for its user-friendly interface and large community support

Answer 30

Ubuntu

Question 31

a stable and versatile distribution often used as a base for other distributions

Answer 31

debian

Question 32

a cutting edge distribution sponsored by Red Hat, known for its frequent updates and emphasis on new technologies

Answer 32

Fedora

Question 33

a free, community-supported distribution based on the commercial Red Hat Enterprise Linux (RHEL)

Answer 33

CentOS

Question 34

a lightweight and customizable distribution designed for experienced users who prefer to build their systems from the ground up

Answer 34

Arch Linux

Question 35

a stable and user-friendly distribution with strong support for graphical administration tools

Answer 35

openSUSE